I did adult learner basic maths a few years ago because I had struggled so badly at school. I don’t exactly brag about being poor at maths, but I’m open about it, it’s not something I try to hide. In my adult classes it was so much better taught, and I was able to discuss with the teacher and she was skilled enough to see where I was going wrong.

OP I think it’s great you’re good at maths, it’s not necessarily an indication of autism though, plenty of autistic people aren’t as good at maths. If we suspect we have a condition there can be a temptation to explain away everything about ourselves when autistic people have their quirks same as anyone.

Do you feel a diagnosis is something you want or need? I’m asking this because I’m similar to you, and actually the same age too, but I haven’t pursued diagnosis yet.