All autism mods that I have found have been made by 'friends' of autistic people at best, and random -insensitive- neurotypical people at worst, and as they are not directly affected by autism, they have absolutely no clue how it works. This is difficult because sims are presented in a very neurotypical manner, one of which I don't entirely connect to. I'm autistic and I would like my sim to echo my mentalities about things.