How do I become a Professional Horse Rider?

I'm 14 years old and I love horses. I have 2 horses of my own. I would love to become a professional horse rider like Pippa Funnell, Mary King, and William Fox-Pit. Does anyone have any idea how I could go about getting to that level? I've been around horses since I was born because my cousin and sister had horses and my sister had a lot of horsey friends with their own horses. And I've been riding properly since I was about 5 years old. So any answers would be very helpful thanks in advance. :)