This can be either something you would change about the curriculum, or about your actions in general in high school: you have carte blanche, regardless of actual feasibility.
Personally, I would change the history curriculum at my high school. We had a really cool team-taught Freshman Humanities program which won all sorts of awards – it was coordinated English and history, so that while you were learning about, say, the Renaissance, you’d be reading the literature of the period, as well as learning about the music and fine arts of the period. It was a great course – I wish I’d had something like it at the college level – but it completely ignored anything outside the U.S. and Western Europe. The American educational system is insular enough without leaving out the majority of continents. (We did have a World History class you could take instead, but that was considered an easy class – the Humanities program was considered more challenging and the only class suitable for college prep students. World History wasn’t even offered in the honors track. There was also a Humanities II for sophomores which covered Asia, Africa, and Latin America, and a Russian History class for juniors, but those were both electives – hardly anyone took them.)
Also, the Advanced Placement science program at my school required participants to devote 2 class periods a day to science, which inevitably meant something else (foreign language, arts, any other electives) would have to be left out. This essentially meant that kids who didn’t want to make science classes the primary focus of their day – like me, the humanities person who actually also liked science – were left out of the most challenging science classes.
And why the heck did they require Freshman Advisory? Boy, that was a waste of time – it was basically an entire class period devoted to how to adjust from middle school to high school. What a useless time sucker.