Did you know that reading over your notes repeatedly is one of the LEAST effective ways to study? Psychology research has demonstrated repeatedly that you remember much more effectively when you work with information rather than just reviewing information.
Solution: Teach your study materials to a partner. Look briefly at a main heading in the notes, then try to teach the rest of that section (from memory) to your friend. Go slowly. Explain carefully. Devise illustrations and examples to help make your point. This method is much more effective than just rereading your notes!