Studying history - at university - can't be overdone, I think.
When I was at school, we learnt it at history classes - usually two or three hours per week. (This was changed after I'd left school - pure coincidence :wink: : during the last two years at grammar school, you only have history classes, when you choose histoyr as "major field of study".)
I've noticed when studying history that I made my exams and looked for working papers mostly about themes/topics, which either I knew already or which interested me most ... which fortunately always went quite well. (Especially, since I don't know any Greek at all)