So I'd like to dance?

I would like to get back into dance. I danced when I was younger and I have stayed flexible. I have continued with simple little technique. However, I am seventeen years old now. I am not looking to becoming the prima ballerina, but I've always wanted to just learn the rigor and skills associated with ballet. I'd like to also be able to continue on to pointe one day. However, have I missed the mark due to my age?