Since you are new to college I would recommend that you assess how you learn and what methods of learning work for you. For example, are you a visual learner. If so, use pictures, videos to help you. If you are an auditory learner, ask if you can record lectures. Other tips are to: get a tutor, talk to the professor to see how they can help you and test yourself (like you have been doing). First, test yourself prior to studying the material (assess your prior knowledge) then test yourself after you have studied to see what you learned from the chapter. Repeat if necessary.