My mom wouldn't let me do gymnastics

So I have hypermobile joints and I can do some pretty weird contortionist "tricks" that I never actually trained on. I have always been naturally flexible. But when I was younger my mom wouldn't let me do gymnastics because she's worried that I would get injured as hypermobility increases the chance of getting injured.

Now I'm 21 and I regret not doing it. I feel like it's too late for me to start now although I am still flexible. Do you think I should start? And if so is it too late to start?