That's really for you to decide. If you think you can be disciplined enough to stick with it and establish a good diet to go along with it, then do it. If you need motivation, we're here for you. 14 is a good age to begin working out in my opinion.
-------------- --JBennett
"I've up-ed my intensity.... now up yours!"
"Pain is only weakness leaving the body."
"Never think of how weak you are; think of how strong you're going to be."