I want to start pointe?

I have taken ballet since February and I just had my recital yesterday and I am very good. My teacher says I am one of the best in the class. I am 12 ( 13 in August) I am auditioning for NBS, RWB and QBS. I want to get on pointe. I have very strong ankles because I have taken gymnastics for 2 years when I was 10 and I do rises every day and flex and point and I spell the abc's with my foot. I know you can't start pointe too early, but what about Misty Copeland. She started after three months!!! If I start pointe at 14 is it too late to be professional?