1. Sleep early - So you will be fresh and you would have a good retention at morning. Have a sleep of 7 hours.
2. Wake up early - this will keep you healthy. Or many students suffer from skin, digestive problem. Remember you can do well if you are well.
3. What to do at morning- take subject you find hard to remember or concept that is hard to catch.Its proven scientifically .
4. Take rest of 5 to 10 minutes when you are bored.
5. Study in time when you have final exam. This will keep you ready at time of final exam.
6. Revise regularly.
7. Study only in fresh mood.Dont force yourself to study.
8. Take surprise quizes to check your concepts and retention.
9. Take most interesting at night so you will able to study .Many times students sleep on table at night.Taking favourite subject will keep you awake.
10. Don't fear exam.Fear of exam is common but it ruin your paper. After exam check your mistakes . Make a notebook solve all the questions you have done wrong add some hard questions on it too. This will help you at time of revisions.
11. Make various exam plans. See which fits you the best. Don't listen people that you must solve chemistry first.
12. Change yourself according to surrounding conditions.
13. Don't waste time in party if you get good marks at once.Rather try to increase your score.If you are topper try to be topper always, If you are not try to decrease marks gap between you and topper day by day
14. HAVE FAITH IN YOU,YOUR STUDY, PARENTS AND GOD

Discuss your doubts with teachers and people who had cracked JEE with good rank regularly.

Take positive pressure .negative pressure will rather take down your score.