I have learned linear algebra in a few different contexts now, and each one I learned made it easier. When I first learned it, it was in a pure maths context and I found it tricky. It began to make more sense in university, when I learned it in the context of x-ray crystallography. I think more so than most topics, linear algebra really needs the context of it’s usefulness for it to really make sense, but also, I think I’d have struggled with the x-ray crystallography if I hadn’t already got a grounding in linear algebra from a pure maths angle.