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.
With long hair, you have two particular easy opportunities:
Just trim only the temples with a trimmer, and let the rest grow as it pleases. Or cut the ends to some length that makes sense. This way you can have a ponytail, or loose hair if that’s your style, and look okay.
Or, get a ‘long mohawk’: have a barber buzz the sides so that you have the back and top in a straight wide stripe, then tie a ponytail and shave the sides with a trimmer once every week or two. This is more fit for dudes, though there are photos of gals in image search too. The benefit of this style is that it’s more chilly than a full head of hair, while also being low-maintenance.