How do I become a tennis player?

I live in Rotherham, England, and I am 13 years old. I love Tennis, and would like to become a professional Tennis player when I grow up. I play it every week for about 5-6 hours, and have a really good forehand(I am not bragging, my PE teacher told me) and also my neighbour and another PE teacher have told me I am good. What do I need to do to become a tennis player. And if it helps, I have really good speed and stamina for my age.