Well, as for me, I try thinking less about exams, in order to get ready well for them. I believe, a good timetable helps not to waste time. Don't study all day long, this way you won't remember anything. Spend on the subject as much time, as you can, and you will succeed. Have you got any schedule to prepare the lesson? How do you fight your fear? Have you got anything to blow your mind out of exams? As for me, I count on friends for that.