After two lectures, you will be reading both lectures and so on. On week-ends, maybe read it twice each day. The point here is to just read the material, do not study it in way that you did earlier. By the time the examination comes around, the you will have gone over the early material so often, that it will be part of you, you will have learned the material and it will be always be there, maybe not consciously, but very easily recalled. Notice that the key to this is limited, intense studying and daily repetition.
Tomorrow never comes, and once yesterday is gone, so is that chance to learn.
You are paying a lot of money to get a college education. While you have the chance, learn the information. Knowledge is power and the information that you learn today will be the currency that you can spend tomorrow to build a successful life.