Those ADuni lectures are actually what I know him from. They're excellent, and I very much admire his teaching. The problem I think is either that I went too far in the lectures without attempting the problem sets, or that I simply didn't have the educational prereqs or a work / hobby application to ground me and keep me working at it. Nonetheless, I very much admire the work and enjoy watching the lectures. If nothing else it gets me in a better headspace when I program. Hopefully I can transition that into learning the actual methods and techniques over time.

I will definitely check out the MIT course. I bet that would help me retain it much better. I was also looking at the Math for Electrical Engineering & Computer Science that I think you mentioned in an earlier comment.