My sadness..

Haiz, today i just finished one of my exam paper, i made a simple mistakes till the question i m losing marks, feeling so regret. The calculation part i m already losing lots of marks some more the theory part i also didn't do well, Haix !!!! i wish i could return back the time. This sem exam i didn't well prepared, the past i was always playing and playing till forget the most important thing. Sometimes i tried to blames myself why would i always doing the last minute revision ? and when after the exam i only tries to regret and feel sorry. Is it everyone must fallen down once times then only know regret ? Besides that, i m always thinking that i must not lose to my friends and i want to be top among of my friends, is it i m crazy minded or i too sensitive or i m just a coward scare to lose to my friends ? i admit i m that kind person who cannot bear to lose and so like face is it i m very evil minded that only thinking myself then i keep telling myself to study harder and harder but every times my laziness won my hardiness. Is there any cure for it , damn i keep thinking of the exam that made me so upset. argh !!!! this night my mind keep blocking me to sleep .. so sienx ...