Yes, anyone can become a doctor. But( I know its always a but), your grades and extracurricular activities have to be nearly perfect all through undergrad and med school. You'll also need to keep stress down to a minimum. College is stressful in general and becoming a doctor probably increases the stress. Along with the good grades hopefully comes scholarships and grants so your not hundreds of thousands of dollars in debt once you become a doctor. Good luck, hope everything works out!