MY calculous...(不知道有沒有拼錯)

I don't know should I feel happy about that I get 90 at calculous... In my class there are so many people that I feel they are geniuses... I know I didn't try my best like them... But ~~I listen carefully in class... I help all my friends...if I listen some clue about teacher told which may test us.. I am not a hardfisted person... I will try my best to teach you... But sometimes.... If I didn't get the grade that better than the person I help before... I will feel upset... I know I can't so selfish about these kind things... Um....maybe I have to think...