I have completed my Bachelor of business degree from National University of Singapore. Now I want to change careers and want to become a doctor. Am getting 21 in October so I know its not too late. But how to go about it. What to do? I am willing to go anywhere but don't have much money. My High School results, SAT Scores (taken 3 years ago) are excellent (one of the best in my country). My Undergrad GPA is only 2.8. (I know! It's pathetic).