1: First of all do not try to start any new chapter or topic. It will just waste your time.

2: Make and follow a routine which is convenient to you.

3: Keep revising you weak portions according to the weightage of the exam.

4: Practice as many as full length mock tests you can do.

5: Try to revise from diagrams and flow charts to retain whatever you are reading.

6: Take good care of your health and take short breaks from studying.