Alot of math I did for Electronics Engineering (sadly forgotten most of it) was a head burster, but Calculus took the cake.
Crazy part of it was, the field I wanted to go into.....you would never ever use it, but you still had to take it.
Calculus I....wasn't so bad, still beat my head against the walls to get the info in....but once you got on to the harder stuff, I was lost. And I had a really awesome math teacher that would sit down 1 on 1 with you on his personal time and try and dumb it down as much as you can....just never got it.
Give me Physics, statics (which is basically non-motion physics), electronic theory, and I could wrap my head around it.
However I am more of a doer, much rather get my hands on it, trial and error, and figure it out...the light bulb clicks on, etc, etc, than read the theory in a book, fortunately or unfortunately, just how my brain is wired I guess.
No different than learning a new technique for modeling. I can read about it, look at pretty pictures in a book, and some of it sticks, or I can watch a video, or in person of someone doing the technique and pick up alot more info.