Finally after dropping out of high school 4 years ago I've come to my senses, and I'm starting to apply myself. Since Maths was my favorite subject, and still is, I picked up Lang's Basic Mathematics and Apostol's Calculus vol.1. Is it normal for the average pre-grad student to be stuck on how to properly write Proofs for simple problems hours at a time? I spend 6 hours 5 days a week every week on these books, and I'm moving at a snail's pace. Pic unrelated.