Well, you are years away from being a doctor. However, high school isn't really a priority for medical schools. They care most about your pre-requisite courses in college and what you have done to prove your passion in medicine.
I might recommend that you check out this website: https://www.aamc.org/students/aspiring/
It's run by the American Association of Medical Colleges. Anything you want to know about being a doctor is there. It requires a great deal of money, time, and a huge amount of effort in your studies. Not just effort, but results.