Hang in there!
Being a low-income teen, I know what it's like being grounded for somewhat dumb reasons. I had a tail servo and an ESC that put me out for a month or so, and busted my flybar cage (duh. trying to fix it
) which put me out for a while.
In the mean time, fly a sim if you have one, and to keep motivated, get on RCG like normal.
Castle should do something for you, whether it be a new one for free, or a new one for half price.
As for a motor, a justgofly.com motor should do awesome for a bargain. Most popular seem to be the 450TH, the 500TH, and the 500F. I don't have one, so you'll have to ask somebody else what's best for you.