Who told you this? What IS important is that you take English, Social Studies, Math, Science each of your four years of high school, and up to at least level three in a foreign language, and one arts class of some sort.
What social studies course are you taking this year? You should be taking something.
There are plenty of college kids who never took APUSH. But this is the first I’ve heard that an 8th grade history course would be considered a high school course. THAT is what you should be considering. IMHO, you should be taking some social studies each of your four years of high school…and at your school like most kids.