OMG UC system! Ha! Which one
? Just graduated from the one in Los Angeles
Anki is an online-based flashcard app that uses like special "spacing" techniques so you can learn a lot of information in a short amount of time and have a higher retention rate than say a regular flashcard app. It basically keeps track of what you know and what you did wrong and tests you in intervals. A lot of medical school use this while studying. Google it
It's free and there are a ton of youtube videos showing you how to use it. Because 6 months is a lot of time, and a lot of time to forget things too.