I need to know about this.

Question
where can i go to start attending wrestling school?
Also can i start attending at the age of six-teen?

Answer
you can attend no matter how old you are. as long as you are willing to pay for it.
where you can go. i don't know. i don't know where you are.  but if you are in or near chicago, there is a wrestling school called Overtime. there are two of them, the main one is in naperville and run by Sean Bormet. the other is in Crystal Lake and run by my friend Donny Reynolds.
there is one in dallas that i know about. i know its there, but i have never been there and i am not sure of the coaches running it. good luck!