Be scared at placement test

Yesterday, I could not sleep because of the placement test. I am already worried about that. I am also thinking about that if I'll fail again, that feeling will be terrible. Of course, I have to prepare the test and study hard. However, sometimes it is hard to do. This is because I might not be sure how much I should be studying for a subject. Some people might say that grades are not useful for encouraging students to study harder. However, it is clear to me that the testing mechanism helps students to try harder. This is because competing for grades helps students learn more and grades help students to measure themselves. I think that opinion is true. It is also true that getting nearer to the test allows me to tremble. However, I really want to pass the test. It is one of my all classmates' dreams. I hope that we will pass all. Let's do our best and pass the test~!!!!