When you say it is "what you want to do," do you mean as a profession? if so, an option might be to train as a ballroom teacher. You'd get your training for free, but would have to teach at the school for a period of time after that. This is an avenue that's full of pitfalls, so if it interests you, check into it fully before you make any commitments. But it is a way to start if no other options will work for you.