Advice needed from someone who's been down the long road to becoming a doctor/surgeon?

Take as much math and science as possible. Particularly biology,chemistry and physics. An anatomy cl would help too if it is offered at your school. Try to take calculus in high school if you can. I'm not a doctor, but I have friends who are on that path. I would suggest looking at physical therapy or occupational therapy if you are interested in sports medicine. It doesn't make quite as much money, but it is a well respected career. It is also much less schooling. Hope this helps you.