>>13949673I am the post below you and obviously not in much of a position to be telling you what to do, but I was similar a few months back. All I did was get a fundamentals of arithmetic and introductory algebra and geometry textbook, literally any textbook that will just tell you the basics and give you practice exercises.
You probably aren't as bad as you think. Your autism might even be a strength in disguise if it's because you're rejecting things you don't understand when the teachers try to force you on them as rote memorization. For me it helped to learn haphazardly about the rationales underlying everything I was studying as I studied it by looking up videos and wikipedia articles since math people usually aren't big on the "whys" of math, especially math that's obvious to them because they've been doing it since they could read. But to me it really helped to see the roots of even the basic algorithms of arithmetic, like long division and fractional notation, and other things like the "why" of the number column way of conceiving number. Nothing is just arbitrary in math, everything was created and refined for a reason. Once you start to see connections between basic things, like prime factorization and how non prime numbers are constituted, it becomes a lot easier because it feels less like random facts you have to memorize. Also interesting historical information, like how math wasn't separated from geometry until recent times, and great mathematicians of the past would intuitively think in terms of manipulating real geometrical manifolds as the ultimate things that numbers were representing.
Another thing to keep in mind is that math is made of a lot of different fields and methods that appear fitted together smoothly through being worked on over years, but that isn't the same as being perfectly logically united, or pre planned.
Just learn arithmetic and geometry and then algebra and trig. But what do I know, I'm one or two steps ahead of you lol.