If you re really having trouble, take whatever you have to memorize with you. Maybe at school you can take them to different classes and when there s down time, review. If you step outside, take them along and maybe you can catch a glance at them. In your spare time you re probably relaxed and awake enough to remember what you try to study. Do not cause yourself unnecessary stress.
Stress is the student's worst enemy.
Causing your mind to fatigue decreases your level of concentration and that hurts you during test-taking conditions. Only study if there is material you haven t yet totally understood, that way you dont waste any time. Use all the resources you have available. If you still don t understand any notes or information you have, make use of all of those resources. They can explain it to you in greater depth if you need it.