Many ADHD and Autistic Adults Don’t Realise They’re Waiting for Certainty
“I’ll do it when I’m sure.”
“I just need to think about it a bit more.”
“What if I make the wrong decision?”
“I need a little more information first.”
For many ADHD and autistic adults, the biggest barrier isn’t a lack of motivation.
It’s waiting for certainty.
The problem is that certainty rarely arrives.
Instead, people become stuck in cycles of overthinking, researching, procrastinating and doubting themselves—without realising that what they’re really waiting for is the impossible feeling of being 100% certain.
It Doesn’t Feel Like Decision Paralysis
Most people imagine decision paralysis as being unable to choose between two options.
But for many neurodivergent adults, it feels much more subtle.
You might spend weeks researching before booking a holiday.
Read dozens of reviews before buying something inexpensive.
Delay sending an email because you’re trying to find the perfect wording.
Put off applying for a job because you’re not completely sure you’re qualified.
Or replay every possible outcome before making even a small decision.
From the outside, it can look like procrastination.
Inside, it feels like trying to prevent making a mistake.
If decision-making is something you struggle with, you may also find my article on Decision Paralysis in ADHD helpful:
Why Does This Happen?
ADHD affects executive functioning.
Autism is often associated with a preference for predictability and difficulty with uncertainty.
When these traits combine, uncertainty can become extremely uncomfortable.
Your brain starts searching for complete confidence before taking action.
The problem?
Life doesn’t work like that.
Most decisions are made with incomplete information.
Yet many ADHD and autistic adults believe they should somehow know the “right” answer before moving forward.
Your Brain Starts Searching for More Information
When certainty doesn’t arrive, the brain often responds by collecting more information.
“I’ll watch one more video.”
“I’ll read one more article.”
“I’ll ask one more person.”
“I’ll think about it overnight.”
Sometimes gathering information is helpful.
But sometimes it simply delays action.
Eventually, research becomes another form of avoidance.
The goal quietly changes from making a decision…
to trying to eliminate uncertainty.
Perfectionism Often Makes It Worse
Many people with ADHD have experienced years of criticism.
They’ve made impulsive decisions.
Forgotten important things.
Been told they weren’t trying hard enough.
Made mistakes that other people didn’t seem to make.
Over time, the brain learns something:
“Don’t make another mistake.”
So every decision begins to feel significant.
Choosing the wrong restaurant.
Sending the wrong email.
Buying the wrong laptop.
Applying for the wrong job.
Each one starts to feel far bigger than it really is.
Instead of trusting yourself…
you wait for certainty.
The Hidden Cost of Waiting
Waiting for certainty often feels productive.
It feels responsible.
It feels sensible.
But over time it can lead to:
- Procrastination.
- Missed opportunities.
- Increased anxiety.
- Low confidence.
- Feeling “stuck.”
- Mental exhaustion.
- Constant overthinking.
- Difficulty starting tasks.
Ironically, the longer we wait…
the less confident we become.
Confidence doesn’t usually come before action.
It often develops because of action.
Why Self-Understanding Changes Everything
Many adults receive an ADHD or autism diagnosis and suddenly realise:
“I’ve been waiting for certainty my whole life.”
Understanding your neurodivergent brain changes how you interpret these experiences.
Instead of thinking:
“I’m lazy.”
You begin thinking:
“My brain struggles with uncertainty.”
Instead of believing you’re indecisive…
You recognise that your nervous system is trying to protect you from making the wrong decision.
That shift often reduces years of self-blame.
Many people also discover that they’ve spent years trying to communicate perfectly, rather than authentically. If that resonates with you, you may enjoy reading ADHD and Autistic Adults Spend Years Translating Themselves:
Small Actions Build Confidence
One of the biggest misconceptions is that confidence comes first.
In reality…
Confidence usually follows action.
Making one small decision.
Sending one email.
Booking one appointment.
Applying for one opportunity.
Each action teaches your brain something important:
“I can cope even if I’m not completely certain.”
Over time, uncertainty becomes less frightening.
Not because life becomes predictable.
Because you begin trusting yourself.
Therapy Can Help
Many ADHD and autistic adults come to therapy believing they need to become more confident.
Often, confidence isn’t the real issue.
The real challenge is learning how to tolerate uncertainty without becoming stuck.
Therapy can help you understand how ADHD, autism, executive functioning, perfectionism and anxiety interact. More importantly, it can help you develop practical strategies that allow you to make decisions without waiting for complete certainty.
You don’t have to eliminate uncertainty.
You only have to become more comfortable moving forward despite it.
Looking for ADHD or Autism Therapy?
If you’re an adult with ADHD, autism, or you’re exploring whether you may be neurodivergent, I provide neuroaffirming psychotherapy that combines evidence-based practice with lived experience as a neurodivergent therapist. Together, we can explore decision paralysis, overthinking, emotional regulation, executive functioning, relationships, masking and the impact of late diagnosis in a supportive and understanding environment.
Book an appointment:
➡️ https://robertrackley.ie/book-now/
Neurodiversity Training for Organisations
I also deliver ADHD and autism training for organisations, healthcare professionals, schools, universities and workplaces throughout Ireland and internationally. My training helps managers, educators and clinicians better understand executive functioning, communication, reasonable adjustments and practical ways to support neurodivergent people.
Find out more about training:
➡️ https://robertrackley.ie/training/
Continue Reading
You may also find these articles helpful:
- Decision Paralysis in ADHD
ADHD and Autistic Adults Spend Years Translating Themselves
What Is Masking in ADHD and Autism? - ADHD Burnout vs Depression
- ADHD and Relationships
