Repetition is the key weapon against forgetting

Everything you learn with SuperMemo will come back to you for review and repetition. Every day, you should select the button Learn (or press Ctrl+L).

After you choose Learn you should go through all your material scheduled for review. Use Enter to go from page to page. Sometimes, SuperMemo will ask you to grade your yourself (e.g. Bright, Good, Pass, Fail, etc.). In such cases, click the grade that best reflects how well you remember

(optional reading at supermemo.com: General Principles of SuperMemo)