Heres an idea.
Take Arts & Maths A Levels. If you wanna go somwhere like Bournemouth, these will help. (2 Years)
Take a good art class at a college. Saint Martins Central College in London have a good one. I dont know where you are though. (1 year)
The you can go to Uni.
You should really learn about the fundamentals of 3D such as art, design, trad animation...etc. You can then apply this to any software. After all, Maya is just software, and that can be learnt at home. You should use this time in your life get the basics done, like drawing. To become, say an animator, software is secondary to the accual animation.
Also, I e-mailed Bournemouth last year and was told Maths and and an Art based subject are the two key things needed to get in there.
Yeah, but no but yeah but no....