Can't think good

Wuuuuf!! that's D-15 National Examination. I feel worry about it :(. My preparation isn't good enough. Especially math and physics. I have already tried to do the practice, but it's so difficult to understand the subjects. I don't how to solve this problem. Could i change this time into the last? Is it a regret?. I can't feel like a bird fly wherever he wants. I feel blue about this situation. Do you know that Champions League, FA Cup and Europe League have begun? I can't watch the matches. Fufufufufu... :( Maybe, now everything should be change! I will sit in the top of six seats. I can imagine if i use something that make me feel so worry. That's a big sin! But many students use it to do the national exam. Tomorrow i will face the last try out of UN. Wish me luck! I can do it. Bismmillah :)