My brain complexing and puzzling

I am complexing and am intertwining my brain by quite a few tests. Next week, I have to take the tests. Those are Public Speaking, Global Trade, and Survey of Calculus. Also, I have to prepare to take a test on Presentation, Final,and ITP of ESL. It does not left the time we have to take a class. For this reason, I feel comfortable while I am worring about the burden of tests. Nevertheless, it is not necessary to complain that situation. Therefore, I will study steadily to achieve the good grades.