I’m autistic, I’ve had one haircut since covid because I hate the sensory aspect of haircuts. I’ve been searching online of how to cut hair and it doesn’t look that hard, but a lot of people seem to advise against it. I think that if I fuck it up it’s not the end of the world, I can just go to a professional. But I have very long hair so I have a lot of opportunity for trial and error. I think that if I get some practice, it’s something I can continue to do going forward. I also don’t particularly care how it looks, I just want it to be shorter.
I learned that I can do a great anime-protagonist haircut, but now that I’m not in my early 20s anymore that’s not really my style anymore.
On the other end of the spectrum, if you just trim the tips off of your perpetual ponytail/braid, that’s easy too.
Everything in between needs practice, and ideally the ability to look at the back of your head.