End preparing for exams about one week before. Design your exams timetable so that your intense preparation ends about one week before the first day of paper. This will help in
Tension free preparation. Inside your heart you know I have one week, as a backup.
One week extra preparation. The last EXTRA week is now more valuable than one month. Everything you will do in this week will be extra and very motivational for you.
If there is 2, 3 days break between papers, don't stick with one subject. As mentioned above it kills productive study and focus. Change study module for the sake of attaining mind focus and refreshment, at least.
Review your notes the day before paper. This will give you an overview of all topics plus strengthening the memory connections for those topics.
After paper is over, don’t throw the question paper into dust bin, thinking that it’s gone now. It can help your mind settle down. Read and examine how much you did correctly.
Keep calculating marks you obtained in each paper and adding to total. It will motivate you, like we do in scoring games.
Don’t forget the one and only solution for refreshment and energy of mind, the exercise and healthy foods in exams.