Lenses and light reflection generally. I always mixed up my angles and got the right answer but the wrong direction!
More specifically I don’t know enough about computers (as in how they turn 1s and 0s into Call of Duty) and programming but I’m trying to fill in the blanks!
I struggle with concepts that are too abstract and that I can’t get clear “images” in my head. Within chemistry that will be the physical portion of it, I much prefer applied and practical aspects. In a way this is the “fault” of one of my professors in college that was teaching physical chemistry; to try and explain very obscure (to me) theories, he was using examples which were even more impossible to understand and made no sense at all!