I'm a dental student, but took the MCAT as I was debating becoming a doctor. It was my secondary plan if I failed to find passion in dentistry. I shadowed normal Family Physicians to Cardiovascular Surgeons at Mayo Clinic (I lived in MN and went to the U of M). MCAT is probably one of the most important exams you will take in your life if you decide to become a doctor. Prepare! Also keep a good sGPA as that will be looked at by Med schools. Most of all, as cheesy and cringey as it may be, don't give up. You will go through hard times when you a bazillion things to do, but just keep with it knowing the good times are just ahead. Oh! I almost forgot! Volunteer a whole bunch. Doesn't need to be at a hospital, just volunteer somewhere where you know you will do good and be contributing to your community.
Hope this helps!🙂
-Fyz