In high school you can take biology, chemistry, physics and calculus to prepare you for pre-med courses in college. You need to finish all of the college pre-med courses to apply to med school. You can decide in med school if you want to become a surgeon or a different type of doctor.
This professional recommends the following next steps:
- Look up what typical pre med classes are
- Take classes in high school as prep for pre medcourses in college (math, physics, chemistry, biology)