Richard is spot on. Time management and discipline are crucial to academic success in medical school. The challenge in preclinical years is the sheer volume of information and the fact that you always feel guilty for not studying when you try to relax. There is no easy way to get through the first two years. Make friends with your classmates; they are great support, and unlike non-medical school friends and family, they understand exactly what you're going through. Try to go to school in a location close to pre-existing friends and family, as they are excellent support as well.