JEE Main

1) Plan
2) Create resources like Timelines, cue cards, annotations etc.
3) Solve past 5 years papers it really helps.
4) Use slang that will quickly help you to grasp and understand the subject, but do not use it in exam.
5) Don't over revise
6) Ask questions and trace the answers when you don't understand any topic, and then sum it up, in short divide and rule.
7) A week before the exams do not start anything new, like a new job, diet etc.
8) Relax by taking a deep breath when you are tensed, and do something fun you like too, for some time, and then get back
9) Sleep well and eat well.
10) A night before the exam have a relaxing evening, do not try to read and understand at the last moment. Things will bounce.