People ask me this more than anything else. Was it worth it, at your age? You'd already lived most of your life. What's a piece of paper going to do?
Honest answer: for me, yes. Mostly. It didn't fix me. I didn't walk out of the assessment calm, organised and suddenly good at friendship. But it took 50 years of "what the hell is wrong with me" and turned it into something I could actually work with.
That's worth a lot. It's not worth the same thing to everybody, though, so let me give you both sides.
What a diagnosis actually gives you
First, an explanation. I spent decades thinking the tics, the habits, the obsessions, the way I'd throw myself at something and then crash, were character flaws. Laziness. Weakness. Something I should be able to fix with more willpower. I had lots of willpower. It didn't help.
Once you have the word, you can go back and reread your own life. It's a strange experience. The time you blew up in a meeting. The party where you were the funniest guy in the room and then needed three days to recover. The friendships that never quite got close. I've wondered how many of my robplosions were overload hitting the wall and how many were plain anger. Probably both. But at least now I'm asking a better question.
Then the practical side, which is boring and matters. A formal diagnosis is usually what you need for workplace accommodations and for some public services. The guide on adult diagnosis from the Fédération québécoise de l'autisme asks people to think about exactly this before they start. Do you want it to understand yourself? To put a real name on past and present struggles? To get adapted services? Write your reasons down, it says, because you'll be asked more than once.
And something I didn't expect to care about: reading other autistic adults and recognising myself, instead of reading about autistic kids and thinking "well, that's not me."
The downsides nobody puts on the brochure
It costs time or money. Often both. In Québec the public route is free but slow. The private route is faster and you pay. I break that down in getting an adult autism assessment in Québec.
It can hurt. The National Autistic Society collects what late-diagnosed adults say they felt, and it's all over the place. Relieved and liberated. Angry. Confused. A sense of loss about the life they might have had. Sometimes all of it on the same afternoon. I wrote about that mess in grief and relief after a late diagnosis.
Nobody hands you a support team. You get a report, and then you go home. Services for autistic adults, especially older ones who hold down jobs and look "fine," are thin. Don't expect the diagnosis to deliver a plan.
Some people won't buy it. "You don't look autistic." "Everybody's a bit autistic now." You'll probably hear one of those, and it stings less once you've read enough to know why it's wrong.
It can come back "no"
Worth saying. You might go through all of it and be told you're not autistic. Maybe it's ADHD, or anxiety, or trauma, or something else. That's not a waste. A good assessment that rules something out still tells you where to look next.
The FQA guide also warns that some assessors, especially older ones, still dismiss adults who make eye contact, speak well, and walk in with a clear idea of themselves. If someone tells you no without running any autism-specific tests, you're allowed to question it and get a second opinion.
Is a self-diagnosis enough?
For some people, yes. If you've done the reading, you recognise yourself deeply, and you don't need accommodations or services, you might not need the paperwork.
For me, I needed someone outside my own head to say it. I'd spent too long being wrong about myself. Self-esteem has never been my strong suit, and I didn't trust my own conclusion. Somebody qualified looking at the whole picture and saying "yes, this" mattered more than I expected.
What it changed day to day
Less than you'd think, and more than I can explain.
I still crash after big pushes. I still pull back from people before they can pull back from me. But I catch it sooner, some of the time. There's a word at home now for what's going on that isn't "Rob's being difficult again." And I'm a lot less likely to read a bad week as proof I'm a fraud.
I'll take that. It's a better map than the one I had, which was basically a napkin with "you're the problem" written on it.