Your first goal is to get into medical school so you should ask your college advisor what classes their pre med track has and enroll in those. Med school is competitive so you’ll need to strive for a high GPA. You should also try to volunteer or do some patient care type work during one of your summers to give you a feel for working with patients. If your college offers research opportunities (eg in neuroscience, medicine or a related field), take a look. Having research experience is good prep for med school.