Free toolkit

The What-If Protocol

Stop rehearsing every possible outcome, and make decisions without needing to feel certain.

For high-performing women whose minds run every possible outcome before making a decision.

Matilda Martins-Ojo · Brain-based coach for high-performing women · Registered nurse

Read this first

Your brain has another question

What if I get it wrong? What if they disagree? What if I say the wrong thing? What if I speak up and they think I am difficult? What if I make the decision and then discover there was a better option?

So you think. You research. You rehearse. You ask someone. You check, and recheck, and run another scenario. And somehow you still do not feel certain.

Here is the problem. You may be trying to get something that many decisions simply cannot give you: certainty. This toolkit is not going to teach you to predict the future. It is going to help you decide what deserves your attention when the future cannot be predicted. Four questions do the work.

What if? → what is true? → what is mine? → what is next?

The quick win

The 60-second what-if reset

Use this the moment you notice yourself looping. Screenshot it.

1 · What if? What outcome am I imagining right now?

2 · What is true? What do I actually know at this moment?

3 · What is mine? What can I control, influence or prepare for?

4 · What is next? What is the next useful decision or action?

You do not have to solve every possible future. Solve what is actually in front of you.

How to use this. You do not need to complete every part. Use the 60-second reset now, and again whenever you catch yourself looping. Run the seven-day experiment near the end. Come back to the middle sections when a specific decision has you stuck. You are experimenting with your response to uncertainty, not trying to remove it.

The science

Why your brain keeps running scenarios

In the NHS you learn quickly that you often have to act on incomplete information, and that waiting for certainty can be its own risk. Most decisions in life are the same. They just do not feel as urgent. Overthinking is not a discipline problem. Three things are usually running underneath it.

Your brain treats uncertainty itself as a threat. Not knowing feels close to danger, so the mind keeps working the problem, trying to make the feeling go away rather than to reach a decision.
Rehearsing the worst case feels like preparation. It is closer to a safety behaviour. Every time you run the scenario and nothing bad happens, your brain quietly credits the rehearsing, and the loop gets a little stronger.
The more certainty you chase, the less you can tolerate not knowing. Reassurance works for a few minutes. Then your tolerance for open questions drops slightly lower than it was before.

None of this is a character flaw. It is a predictable response to feeling responsible and wanting to get things right. The protocol is a way of deciding what actually needs your attention when the rest cannot be known yet.

Part 1

Sort the worry

Your brain can generate possibilities faster than reality can answer them. A possibility is not a prediction. A prediction is not a fact. Take one worry that is looping right now.

My what-if: “What if ______?”

Classify it:

☐ Something happening right now☐ Something that could happen☐ Something I know will happen☐ Something I have no evidence will happen☐ Something I could cope with if it did☐ Something I cannot currently know

Is there a problem happening that I can act on, or am I trying to mentally resolve an uncertain future?

If there is a real problem, there is a next action. Do that. If you are trying to resolve an uncertain future, you can think about it for three hours and still not know. Not every thought requires a solution.

Part 2

Interrogate the prediction

Take the thought “this is going to go badly.” Now investigate it rather than obey it.

What exactly am I predicting?

What facts support that prediction? What facts do not?

What am I assuming? What is currently unknown?

Am I treating “I do not know” as “it will go badly”?

Your brain already showed you the worst case. Complete the picture it skipped.

Worst realistic outcome, and what I could do if it happened:

Best realistic outcome:

Most likely outcome, based on the information I actually have:

Have I been giving the worst case more weight simply because it feels more threatening?

Part 3

What is mine?

Sort what is on your mind into three groups.

Control

My words. My preparation. My behaviour. My boundaries. My decision. My next action.

Influence

Someone's understanding. A conversation. A team's response. An outcome. An opportunity.

Uncertainty

What someone thinks of me. Whether everyone agrees. The exact future. Whether something unexpected happens.

How much of my thinking time am I spending in the uncertainty group?

Move your attention back to control. What can I actually do?

Part 4

The reassurance loop

Something worries you. So you Google it, ask a friend, ask another friend, re-read the message, ask someone what they think, check again, replay the conversation, rewrite the message five times. Then you feel relief. For a while. Until “but what if…?” comes back.

When I feel uncertain, I tend to:

That gives me relief for:

Then I start thinking about:

Instead of “how do I get rid of this uncertainty?” try a different question:

Can I make the next decision while some uncertainty remains?

Run one no-check experiment this week. Choose a single low-stakes situation where you would normally reread the message, ask a second person, or check again. Do not. Notice how strong the pull is, and whether it fades on its own within an hour. This one action does more to loosen the loop than any amount of analysis, because it shows your brain that the discomfort passes without the checking.

Part 5

How much certainty do you actually need?

Imagine you are considering applying for a promotion. Would you need to know, before you apply, that you are definitely qualified enough, that you will get an interview, that you will perform well, that you will get it, that you will enjoy it, that you will not regret it?

Which of those can you actually know before you apply? If your rule is “I can act when I feel certain,” you may wait a long time. Try replacing it with “I can act when I have enough information for the next step.”

What information do I genuinely need for the next step?

What would be useful but is not essential?

What is impossible to know in advance?

The consequences of this decision are:

☐ Easily reversible☐ Partly reversible☐ Difficult to reverse

I will gather what I need by ______. I will decide by ______.

Once that deadline arrives, do not reopen the case without new information. Ask: has something materially changed? If not, you may be looking for certainty, not information.

Part 6

The decision filter

Part 5 was about giving yourself permission to decide. This is the decision itself. You do not need thirty-seven questions. You need five.

I need to decide:

1 · What actually matters here?

2 · What facts do I have?

3 · What are my realistic options? (A, B, C)

4 · What matters most to me in this decision?

5 · Do I have enough information to take the next step? If not, what is missing and how will I get it?

If the answer to five is yes, decide. Not because you know exactly what will happen. Because you have gathered enough to move.

Part 7

The coping question

Sometimes you do not need proof that nothing will go wrong. You need confidence that if something does go wrong, you can respond. Take your biggest what-if.

What if:

Then I would:

And if that did not work, then I could:

Who could help? What have I handled before that suggests I could respond?

Notice the shift. From “how do I guarantee this will not happen?” to “if it happens, how could I respond?” That is a very different question, and it is one you can actually answer.

Part 8

The 7-day what-if experiment

You are not trying to eliminate uncertainty. You are experimenting with your response to it.

Day 1Catch it. Record your three most common “what if?” thoughts.
Day 2Separate it. For each one ask: fact, prediction or unknown?
Day 3Sort it. Put your biggest worry into control, influence or uncertainty.
Day 4Do not check. Choose one low-stakes situation where you normally recheck or seek reassurance. Do not. Notice the discomfort, and whether it fades on its own.
Day 5Decide. Make one small reversible decision without reaching complete certainty. Do not reopen it without new information.
Day 6Cope. Take one worst-case prediction and answer: “if that happened, what would I do?”
Day 7Move. Take one thing you have been overthinking. Ask what the next useful action is. Then take it.

Decide your response before you are in the loop. If I notice myself replaying the same scenario, then I will run the 60-second reset. If I have enough information but still do not feel ready, then I will take the smallest useful next step.

Keep this page

When your brain starts running scenarios, work through the four questions.

What if? What exactly am I predicting?
What is true? What do I know? What am I assuming? What remains unknown?
What is mine? What can I control? What can I influence? What do I need to leave uncertain?
What is next? Do I need information, a decision, an action, or to tolerate not knowing yet? Then move accordingly.

You are not waiting for certainty. You are waiting to feel certain, and that feeling is not coming. You already have enough to move.

Ready to go deeper?

Maybe you read this and realised you know you are overthinking, and still cannot seem to stop

You are excellent at analysing problems for everyone else. But when the decision is yours, your mind starts producing: what if I get it wrong? What will they think? Should I wait? Maybe I need more information. What if there is something I have not considered?

The problem may not be that you cannot make decisions. You may be trying to make them without experiencing uncertainty. That is something we can work on.

“Coaching helped me recognise what was really behind my procrastination and challenge some of the beliefs I had about myself. I began rebuilding my confidence, taking action, and was finally able to start preparing.”Jackie, Trainee Doctor

Book a free clarity call

Thirty minutes, no charge. We look at where the overthinking shows up and what may be keeping the pattern going. No pitch. I want to help you trust yourself enough to make your own decisions.

About Matilda

I am a brain-based coach and a registered nurse. For more than ten years I led teams in the NHS, where acting well on incomplete information is part of the job, and I saw how much capable people can lose to the search for certainty.

I now coach high-performing women privately, to move from endless mental rehearsal towards clearer, more intentional action.

Registered Nurse · NHS Leadership Academy · NeuroLeadership Institute · MSc