Recently (although still in high school) I've been at university, more precisely at information science engineering as apprenticeship. I want to become an operating system programmer but I severely lack in math understanding and knowledge: for example I've 10/10 (in Italy we have this graduations) in IT, without any whatsoever problem for understanding and gain more new knowledge on the topic, whereas in math I've 2/10, which is severely insufficient.
I really struggle to understand all the theory (it seem too cryptic for me) and I can't mentally visualize and process math: I literally crash. Still I want to go to university, but since the first 2 years are 70% math, I'm afraid to not pass it and just waste time.
So, are there some good tutorials, books or whatever that illustrate math clearly and could help me out?