Give yourself sufficient time to study

Don't leave it until the last minute. While some student do seem to thrive on last-minute cram, it's widely accepted that for most of us, this is not the best way to approach an exam. Set out a timetable for your revise. Write down how many exams you have and the days on which you have to sit them. Then manage your study accordingly. You may want to give some exams more study time than others, so discover a sense of balance that you feel comfortable with.