Is it too late to be a pro athlete?

Well. It depends on what u got. If you live somewhere where u can get a membership somewhere where there is always an open court, u should get it. Then probably if u are totally serious, get a personal tennis coach, but not until you are actually pretty good and wouldnt drive him/her crazy, cuz it will make things more productive. Now, there has to be some people at school, church or whatever that are pretty good players and could help you. Or try a local tennis store that would sell tennis stuff and make a flyer so if anybody would like to help you, they can call you. Then it will make it a whole lot more possible if you are a very good athlete and can play just about any sport, or at least look good playing any. I know I started when i was like 8 or 9, but i wasnt totally serious about it and I didnt have the money to do anything with it anyway. But, i am a really good athlete so i picked it up pretty quickly. So if you are really serious, practice every day, and once you get the basics down and get pretty good, you can also practice, at least serving, on your own. I kno that i would go out an play w/ u if i was close cuz i dont have anybody to play with either. so, Good luck!