1. You can just gaslight yourself into liking math, by finding easy to understand material on math, then working yourself up from there, but that requires like Bene Gesserit levels of understanding autism and especially your own autism, and a lot of support from your parents (which is usually the bane of many autistic talents).
2. You can still get good at e.g. making stuffed animals, which you can always upgrade to making fursuits to get a lot of money.

Also remember that a lot of these “anti-savant” sentiments originate from autism moms, and they often like to claim most autistic people are like at Chris-chan levels of talent at their special interest/craft.