Not dramatically. Just quietly. A persistent sense that everyone else had been given instructions I never received.

Melissa Booth-Simonsen
I had rules, hundreds of them, about how to show up, how to seem capable, how to make sure nobody looked too closely. I achieved a lot running on that fuel. I also burned through a lot of years doing it.
When I was diagnosed autistic, something shifted. Not my circumstances, those stayed exactly the same. What changed was the story. It wasn't that I wasn't good enough. It was that I'm autistic, and my brain had been doing the best it could with no support and no framework that actually fit.
I became a BCBA in 2005 and spent over two decades working with diverse populations: children in foster care, adults with disabilities, individuals in brain injury rehabilitation, and families navigating some of the hardest periods of their lives. I was good at it. I was also privately exhausted in ways I couldn't fully explain.
When my mum died in 2022, I hit a wall I couldn't work my way through. I tried. I gave myself three months to grieve and expected to bounce back. Instead I kept digging deeper into burnout, until a diagnosis finally gave me a language for what had been happening my whole life.
The relief was real. And then, a few months later, nothing had actually changed. Knowing I was autistic didn't tell me what to do on a Tuesday when everything was too much. That's when I started building the structure and support I actually needed, and when things genuinely began to shift.
I realised I could take everything I'd spent my career doing, helping people live healthier, more sustainable lives, and bring it to a population I now understood from the inside. Late-identified autistic adults in the middle of burnout, trying to figure out what comes next.
I'm an ACT coach and behaviour scientist living in the UK with my family and my dog. I've stopped organising my life around productivity at all costs. I know now that I need downtime, creative time, family time, and work time, and that work is genuinely a passion, but only when it has the others alongside it.
I love this country. The history, the walking culture, the medieval villages you stumble across on an ordinary afternoon. It's a life I couldn't have imagined building. But here I am.
Masters of Behaviour Science
Board Certified Behavior Analyst (BCBA)
Certified UK Behaviour Analyst
Acceptance and Commitment Therapy/Training
Behaviour scientist
Neuro-affirming
Accredited Continuing Education Provider (BACB)
Approved Professional Development Provider (UK-SBA)
© 2026 Positive Strategies | Melissa Booth-Simonsen. All rights reserved.
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