First of all, I'm sorry if this isn't the kind of question that should be made in MathOverflow. I read the FAQ and I didn't consider this (that) inappropriate. I couldn't resist! People here are experts. All the experience here could help me.
I'm starting my undergraduate studies in september. I was studying computer science but I'm switching majors. Now I'm going to study mathematics. I don't want to fail any class, and some recommendation from you would be useful.
So I'd like to ask two questions:
- What would have been good for you to know before you started studying mathematics that you didn't know?
- Is there something that you did that helped you learn the most?
Any kind of advice is appreciated. Thank you.