How to Overcome Self-Doubt
Understand why you doubt yourself — and learn practical ways to build confidence in your decisions and abilities.
Why do I doubt myself so much?
“What if I’m not good enough?”
“What if I get it wrong?”
“Everyone else seems more capable than me.”
Self-doubt can appear before a job interview, when making an important decision, starting something new — or even when somebody gives you a compliment.
A little uncertainty can be useful. It encourages us to think things through.
But when self-doubt becomes a pattern, it can make you question your abilities even when there is good evidence that you are capable.
⏱ Quick Read (60 seconds)
Everything you need to know about working memory in less than a minute.
What is it?
Self-doubt is uncertainty about your abilities, decisions or whether you're good enough.
Why does it happen?
Past experiences, criticism, comparison and fear of failure can all strengthen self-doubt.
What does it look like?
Overthinking, seeking reassurance, procrastinating, avoiding opportunities or overpreparing.
What can help?
Question the thought, check the evidence and take one small step rather than waiting to feel confident.
What Is Self-Doubt?
Working memory is your brain’s temporary workspace.
It allows you to hold information in your mind for a short time while using it.
You use working memory every day when you:
✔ Follow spoken instructions
✔ Remember a phone number long enough to dial it
✔ Keep track of several steps in a task
✔ Remember why you walked into a room
The more your brain is trying to hold onto, the easier it becomes for important information to slip away.
💡Psychologist Tip
Confidence doesn’t always come before action.
Waiting until you feel completely confident can keep you stuck. Instead, try taking one small step while the doubt is still there.
Each time you cope, you give your brain new evidence that you’re more capable than your self-doubt suggests.
💡Psychologist Tip
Notice the difference between a thought and a fact.
When your mind says “I can’t do this,” try asking:
“What evidence do I actually have?”
That one question can create enough space to respond differently.
Why Does Self-Doubt Become So Powerful?
Self-doubt often starts as a thought:
“What if I get this wrong?”
But when that thought is repeated, your brain can begin treating it as if it were evidence.
You may start noticing every mistake while overlooking the things you do well. A difficult experience, criticism or comparison with other people can reinforce the belief that you aren’t capable enough.
Self-doubt can then create its own cycle.
You doubt yourself → you avoid, procrastinate or overprepare → you have fewer opportunities to discover what you’re actually capable of → the doubt remains.
And even when things go well, you might dismiss the success:
“I was lucky.”
“Anyone could have done that.”
“Next time I’ll probably get it wrong.”
Breaking the cycle isn’t about eliminating every doubtful thought. It’s about learning not to treat every doubtful thought as a fact.
Does This Sound Familiar?
Working memory difficulties often show up in small everyday moments like these.
Work / opportunity
“You're asked to do something new... and immediately wonder if you're capable.”
Decisions
“You make a decision... then spend hours wondering if you've made the wrong one.”
Comparison
“Someone else does well... and suddenly you question whether you're good enough.”
Praise / success
“Someone compliments your work... but you tell yourself they were just being nice.”
Make Self-Doubt Easier to Manage
Small changes in how you respond to doubt can stop it taking over.
📝 Write down the evidence
Self-doubt tends to focus on what might go wrong.
Write down what you actually know: things you’ve achieved, problems you’ve solved, positive feedback you’ve received, or situations you’ve handled before.
🔍 Question the thought
When your brain says “I can’t do this”, don’t automatically treat it as a fact.
Ask yourself: “What evidence do I have that this is true?” Then consider what you might say to someone else having the same thought.
👣 Take one small step
Waiting until you feel completely confident can keep you stuck.
Choose the smallest useful action you can take now. Starting can give your brain new evidence that you are capable.
🚫 Stop using other people as the benchmark
Someone else doing well doesn’t mean you’re doing badly.
Compare yourself with where you were before, rather than with someone whose circumstances, experience and strengths may be completely different.
⏱️ Give yourself a stopping point
Self-doubt can make you keep checking, changing and preparing because nothing ever feels quite good enough.
Ready to Make Everyday Life Easier?
Our ADHD Practical Toolkit (£19) contains printable planners, reminder systems, checklists and psychologist-designed resources to reduce working memory overload in everyday life.
💡 Psychologist’s Tip
You don’t need a better memory—you need fewer things to remember.
Most people who appear organised aren’t relying on memory alone. They’ve built simple systems that remember for them.