I am 39 and want to learn gymnastics, do you think i am too old ?,wheres a good place to start classes in nyc?

i am working out everyday, can do cartwheels and roundoffs still! everyone thinks im too old, and i have weak ankles, a previously dislocated shouloder, torn ligaments in left knee, but I have the philosophy that if you want something bad enough the only limitations are in your mind, i have asthma also, they will surely not let me in any classes if i tell them alll this about old injuries, but i seriously want to learn as a kid about 12, i hopped up on a balance beam and started doing cartwheels and roundoffs just like that. huh pretty good huh??? but i want to do that stuff now and im 39!!!! and i dont want to get hurt.