C, I have a lot of friends who are majoring in Biology and in the  7-year pre-med program. I don't know if that is what you are doing but some of them are having a hard time as well with their science classes and they feel uncertain about their future, of becoming a doctor. Some of them decided to change their major to nursing. Personally, I am planning, just thinking about going to Medical school but I am taking nursing as a fall back if i change my mind. I might stay in nursing coz I love it. You got to learn the medical things early, the experience is priceless and it's incrediblely whahhha grrrrrh..haha I am getting excited!...But of course If i really want to go to med school then I have to take those mandatory science courses. My plan will be work as a nurse, save money, take those science classes, take my time, enjoy life, go to med school if i want to...or continue studying nursing. The fact that just after 4 years in college i will have a decent stable job...i don't have to worry much!...^_^ what you think?..