Before you can start experimenting with different studying methods, you need to understand what type of learner you are.
Is your memory associated to sound? Maybe you can remember what you were reading when a particular song was playing? If this is your case, then you fall into the category of auditory learners. If you want to start studying more efficiently, then it would be wise to record the lectures and listen to them instead of reading textbook
Do you relate information to visual content? If you are a visual learner, you should implement images, graphs, charts, infographics, colorful lists, flashcards, and other types of visual content when you study
If your learning style is not auditory or visual, then you might be a physical learner. Some students have too much energy; they tap their feet or play with a pen during lectures. A walk before a lecture will calm your nerves down. You can try studying/listening to audio lectures during a walk. That will help you remember the information more quickly
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