I'm a high school student, and I have a great passion for medicine. However, hearing stories about how difficult it is to become a doctor, I often find myself not feeling very confident. I'm a sophomore and, so far, I have straight As. However, I'm having a bit of a hard time in physics. Will this dampen my chances of becoming a doctor? Also, will it matter to highly ranked schools, like Ivy Leagues, that I haven't had research or any science awards, or that I have trouble with physics? What extracurriculars could I do that deal with medicine in high school (other than volunteering at the library)?