It is uppermost in the process of studying and retaining information that preparation be an integral part. As important as being attentive at lecture time; the addition of a cumulative outline of crucial text, by any acceptable method deemed comfortable, serve as reinforcement of said material as well as a quick yet substantive review prior to testing.
My advice here would be, keep note-taking and highlighting to a minimum, so the eye is drawn not overwhelmed, "short and sweet, keeps it concrete". Next, whenever possible, read silently and aloud, repeating once, without reading, but visualizing the words on the page before advancing.
If possible, get a study partner to review the material with you, and help develop sample tests, oral as well as written, at closure of each section or system, subject review.
The night prior to our state board testing there were still students running room to room with text books clutched to their chests which I found a useless expenditure of energy as I locked my door and settled into sleep.