Can someone please help me on choosing my college and choices I may have?

Hello all,
I am going to be a junior in high school. I am a straight 97-100 student in all my courses, had a 1090 on the PSAT ( working on it), and I am very lost in a few things for college. I want to be a dermatologist and I know being a biology major or chem major is preferable. However can someone explain to me the prerequisites in college? I’m taking APUSH this year will that benefit me? I was looking into majors and I wanted to be a bio major or double major in chem and bio with a minor in Spanish. Can someone help me out here? I would like some advice. What should my SAT score be, did my PSAT show any potential? I am an advanced student I have most of my credits.

I desire to stay in state.