Some things that has helped me are to record lectures (ask your instructors first to make sure they are ok with it), take copious notes (not just during lecture ), and type your notes to include notes from lectures, reading, etc. Having to retype everything helps get things in there a second time and gives you an electronic copy should your paper copies get damaged or lost. After typing notes up, make flashcards for key concepts and terms. I usually would put them in card organizers or on a binder ring for quick moments (breaks, lunches, etc) to read. I also use color coding to organize different subjects etc. Form study groups to quiz each other, review materials, etc. Practice and review as much as possible, but remember to recharge yourself. Exercise, enough sleep, proper nutrition and hydration, and just plain laughter helps immensely!