How to become a professional pianist?

I have been playing the piano since I was four, now I'm fifteen. I practice 4 hours a day during the summer and two during the school year except about once a month, I'll play for about 8 hours a day. What competitions should I be looking in to? What steps should I follow to get into a good music school? I get perfect grades so the repertoire Would be what I need to work on. Should I even consider playing professionally? Is there any job openings or chance?