Strunk and White's 'The Elements of Style' is a tiny book that will make you a better writer almost overnight. Every student should own a copy. It's cheap, it's short, and the advice in it never goes out of date.

There's no one-size-fits-all answer here. Experiment with different approaches and pay attention to what actually works for you, not what worked for your friend. Learning styles are real — some people learn by reading, some by doing, some by listening.

Form a study group, but a small one — three or four people max. Explaining something to a classmate is the best way to find out whether you actually understand it. Just make sure it stays a study group and doesn't turn into a hangout.

Flashcards still work. Old-fashioned index cards. Make them yourself — the act of writing the card is half the learning. Quiz yourself, shuffle them, put the hard ones in a separate pile. Low-tech but it gets results.