clear your mind!
As ordinary humans, we has been given a brain, only one. Sometimes we think too much, and the fact, most of those things we think are unimportant! So it's good if we don't think in one day, or at least 12 hours. A scientist said we supposed to study only 2 hours. And I think too, is it enough if we study only 2 hours a day? I think no. And beside study, there are sometimes many problems make us dizzy. And the question is, how to solve your problems? It's easy, you only pray, take a rest for a while, and then think what you must do to solve your problems. Easy, right? Don't say "God, I have big & many problems." Say "Dear problems, I have a huge God". :)