Does anyone have adequate resources to share on learning Math "from scratch"? I must shamefully admit that anything beyond the basic symbols is entirely foreign to me.

I started self learning Maths (number theory) this year from scratch I am extremely slow but I am progressing. My advice is take a textbook of the kind of maths you want to learn and skip the theory jump straight to the exercises do them and compare the answers, if your answers are wrong then read the theory. Also when doing exercises you can reference the theory but don't read the theory alone.

One thing that will block you is notation, if you are a coder Math As Code [0] is great way to decode the advanced Mathematical symbols, It helped me start reading math:

[0]- https://github.com/Jam3/math-as-code