Can I become a Ballerina?

I am 15 years old. I have been dancing since I was 3. This year and last year i realized that Ballet is my favorite class. I enjoy watching ballet dances and ballets. Is it possible for me to ever become a Ballerina? I realize that is what my dream is. How can I make it happen. I am on pointe Have been for 3 years now. I take 3 ballet classes a week one tuesday for and hour and a half one friday for an hour and a half and one saturday for an hour and a half I also take 2 pointe classes one friday and one saturday both 30 minutes. With a schedule like mine will it be possible to become a prima ballerina?