I am on the autism spectrum. I'm well into middle age.
Being autistic is like being in a poker game where you keep getting dealt hands that are high-card, and everyone else is getting straights, flushes, or even just pairs, and you only get out when you're bankrupt. Yeah, I play the hand I'm dealt, and I'm going to lose every goddamn time.
EDIT: A better analogy is gonna be Pinnochio (or A. I. Artificial Intelligence). I'm never going to be a real boy (any no, it's not because I'm AFAB and also a gender essentialist). No matter how hard I work at being better, there's no good fae that's going to come along and use their fae magic to make me a real boy. I'm never going to have the experiences of the real children, because I'm simply not one of them. I can ape their external characteristics, but I can't be them. While this--being autistic--is a result of evolution (it's likely a non-beneficial genetic mutation), humans have largely evolved to survive as a social species, to have close relationships and tribal affiliations. I'm always going to be on the outside, rather than part of an in-group.