Hello, I am a sophomore in high school and am looking to go into physics and ideally astrophysics. I am in honors precalc/trig right now and will be taking AP Calc next year, and probably multivariable calc my senior year. I'm in chemistry this year and physics next year. I will probably take a college physics course my senior year. I have been getting 95%+ in all my math and science classes. I am looking for some of the better undergrad schools for physics. I plan on going for a PhD in astrophysics after that. Anything else I should do to prepare for? Thanks for your help.