Hmm I remember those days lol. They weren't that long ago for me. Well, I did that in college, I took many smart people classes. It was very overwhelming but eventually you get the hang of it. Just make sure you ask a lot of questions and study hard.
Well, this yer I'm not taking a history course, merely government as I noted. But in my three previous years of high school, I took World, European, and U.S. Histories.
Are you starting to look into post-highschool careers as well or not yet? Perfectly understandable if not; the stakes raise starting next year for you.