Is it unrealistic for me to want to be a dancer on Broadway someday?

I'm 13 and have always wanted to be a dancer on Broadway, I know it's not as glamorous as most people seem to think it is and I know it doesn't pay that well. I just want to do it because I love dance and performing for people. I dance 15 hours a week altogether (4 ballet classes, 1.5 hours each; 2 pointe classes, 45 minutes each; 2 jazz classes, 1.5 hours each; and 3 modern classes, 1.5 hours each. ) I also have some acting abilities, but I can't sing very well. I'd be willing to try to work on that though. Do I have any chance of becoming a dancer on Broadway?