liamd-07:
What about an rgb version? Because that is what i want the big version to be?
I would start with something much smaller, maybe a 3x3x3 cube with single color LEDs.
eg. If you were going to build a racing car would you start with a go-cart or a Formula 1?
It's really a difficult project, not for beginners. A big RGB cube is an 'expert' level job, both from the electronics and programming point of view. There are many, many problems to be solved and you have no experience. Your teacher might not be able to help because programming microcontrollers and LED chips is very different than programming a PC, at the very least you'll need assembly language skills to complete it (OTOH he might be an Arduino expert - I'm not telepathic, ask him if it's the sort of thing he's good at!)
It would be a big help if you can find somebody who's done something like this before.