Actually, I think your first step is trying a few things out, exploring. Since your father wouldn't let you, now is the time to break the 3/4 goes to 5/6 cycle. We can develop interests all our lives and the attributes/talents we're born with don't really go anywhere, they just get used "strangely" :-) when they get subverted by mental illness into symptoms, etc.

It looks like you have a little singing though going with chorus? That's a good start. What other things were you trying to persue when you were a kid; those will tell you where your talents lie. Usually interests are somewhere around talents; zoologists or veterinarians don't start as astronomers or discreet mathematicians :-)