What does studying as much as possible constitute for you? Studying dusk 'till dawn or studying as much as you can, but so that you still have time to eat like a normal human being, exercise and have fun every day?I am worried that because I didn't feel comfortable in calculus, I may have trouble with upper division physics/math. That's is the reason I quit last semester. I have to admit, I didn't spend a ton of time studying, which was probably a big problem. I should have studied as much as possible. Anyway, I think I am going to give it another shot. Thanks for the advice everyone.