May I ask your age? If your old enough I would get a job and start saving up money. Otherwise, just start doing your homework ( research online ) and learn all you can. Give yourself time to think it over and make sure you know what your doing, making sure to be honest with yourself.
If your close at all to your parents, I would try to find a way to tell them eventually....but more about your situation would help us give you better advice.
good luk with what the future holds, try to be patient even though it's hard!
Chloe