Should I drop a class and get a second study hall?

Hi! I am currently taking all honors and three AP classes and I’m a junior. I have straight As, but I don’t think I can keep them up for the spring semester because I am starting a college class through a partnership with my high school. I have ceramics for the second semester, but I already have an entire art credit, so I was wondering if it would be a good idea to drop that class and take a second study hall. I also have tennis now and need to study for the AP exams and the SAT.