Back in school, the harder proof based math courses were a big change for me. They took a while to get the hang of and even more years to really appreciate. Stick with it and you can get good at it. It's not innate.
It just like... I don't know normal math it "works" you can work through it step by step, this stuff is almost like philosophy to me... where it didn't really make sense, you just took it for word what some guy thought. I did badly in philosophy but did well in psychology.
not saying this doesn't follow a set of rules/logic, I'm just saying I look at it and it's not like rote-memory math, you know, you look for these patterns, practice this method/approach and solve the problem...
yeah also it's a matter of passion too... I'm not actually sure what I'm passionate about, I thought I knew... but things like AI, Machine learning, computer vision, it's cool, but would I actually obsess over it and master it... I'm not sure. I'm still trying to solve the problem of "I need money" and I try to come up with ways to make a lot at once somehow, but not succeeding.