So, you made your parents pay lots of money since you didn't want a hard-earned Xbox 360 to get away with not working? Money doesn't grow on trees, you know, you could have acted like a REAL human and send it in for a repair.
There's lots of ways.
1.Get it repaired officially by Microsoft.
2.Get it repaired unofficialy by someone else who's good at electronics.
Well, i can't blame it, what a hard life that Xbox must have, being thrown through windows, probably.