I need my tooth loose and out...ASAP!?

Ok, well i need to get braces and if my tooth isn't out in 3 months, they will have to pull it. I don't want that and i'm sure my mom and dad don't want to pay for it. My tooth isn't loose one bit, and the adult tooth grew in BEHIND it in stead of pushing the baby tooth out and growing in place. There is no hope and I was wondering if someone knows a way to get is loose and out in about 3 months??