What subjects should i pick for my senior yrs?i wanna become a doctor?

even i want become doctor as well and i talk about this to my teacher she said to Doctor only few universities check if you done maths or physic. they don't need both and she gave me advice that physic is really hard subject but if you are good at math it will help you allot in physic. In overall i think you should go for the subject you want because if you work hard everything is possible and but still you should keep you option open for other subject. You should choose a universities in your mind you want to go and research about it so you get idea what subject they are looking for doing medical