Today students main problem is how to study in right way. as per my point of view you should study this way.
steps.
1. You should awoke early in the morning at 4.0 am.
2. Do not write any thing in morning only read your course or notes for 2 hours contineous.
3. After two hours you write what ever you have read then see how much you are are forgetting.
4. Do not do anything about reading after coming from school.
5. Do homework in afternoon of writing things.
6. Go for play on evening.
7. Do writing things in night.
8. You must sleep at 11 PM compulsury.
so you follow these steps daily for your improvement. my best wishes with you.