 Here's a mistake that students make all the time. They take a look at all the tasks that they need to get done in a single day and write them all down on a piece of paper and say, yep, I'm going to finish that today. This is not how you should do things. You're probably not going to do them because that's an unachievable goal and at the end of the day, you're going to feel unaccomplished and unhappy with yourself. Instead, just choose one, two or three things that you can actually do in the time that you have in front of you and focus on getting those done. At the end of the day, when you take them all off with your pen, you're going to feel a lot better and motivated to do the same thing tomorrow.