Most people don’t really know how to study. There are many different methods of studying. A few are repetition, memorization, and flashcards.
You can use repetition by writing down your material over and over again until it is embedded in your head. This method tends to work the best for me.
You can also try to just memorize your material. In order to do this, you have to concentrate and have a clear mind.
Lastly, the flashcard method is one of the simplest forms of studying. Mostly everyone uses it as well. The best way to make flashcards is to separate each of your specific definitions onto each card. It also helps to use different colors of ink.
Overall, everyone has a specific way of studying that works for them.