If you want to apply to nursing, then A&P is the way to go. (AP Bio in addition to that if you can).
Note that for nursing you should optimally take Precalculus and/or AP Statistics (or regular Statistics), Spanish 3 or 4, AP World History or general world history, AP psychology or regular psychology, and of course English. If your school offers an elective, Nutrition or other Health-related classes would be good.
- find ways to volunteer, perhaps in a nursing home, a hospital, a clinic, as long as it is safe to do so (hopefully by senior year things will have become less dangerous).