Tips to help you study
Learn the general concepts first, don't worry about learning the small details until you have learned all of the main details.
Make sure you actually understand the whole concepts, don't just memorize it to memorize it, because on test's they word questions differently
Study the most important information first.
Make connections with your topic
Chew gum! It helps you concentrate better.
Make mental images to help you remember
Try listening to music to help you not lose interest and to make studying better.