give me the solution of my problem?

When u re studying never deviate your mind and think about something always concentrate on your studies if its one hour or three hours study well, secondly write down the important point so that u never forgot, and that u can revise later, and this can help u to do well in your examination. In case of sleep, i would recommend u to sleep for atleast 7 hours which is more then sufficient, always think that u need to be successful in your life like bill gates or albert einstein, and then go to bed on time.every second in precious, time once lost will not return.

try some sleeping pills but don't too much...and take exercise everyday, you will have good sleep. Oops, the last thing is drink some milk before you go to bed, hope this helps you out.