I have an ex who really found herself with mushrooms. Not my thing at all, but I'm happy she is able to understand herself well that way.
And for adhd, they generally prescribe stimulants.
I know a lot of autists also find solace in cannabis or even alcohol.
You gotta be careful with this stuff though. Addiction is fucking real, and it can really ruin your entire life and people around you. I don't know what you're really like, so I can't responsibly give you any safe advice on this topic other than to take the risks seriously.