So many people love the eleventh hour, that's when you want to cover a whole semester. You know the brain gets stressed out too, right? This is what you will do if you want better grades. This tiny practice involves you reviewing your notes every night, doing this for just 30 minutes as a review of what you were thought for that particular day. When you wake up, try to recall those things for just 15 minutes. Don't worry it might seem very difficult at the beginning especially if you don’t like the course but trust me, if you keep doing this every day, you will love it. There are other ways too but I believe this is very effective if you are consistent.