My first question would be, are you fit and do you have a passion for teaching and having a fit lifestyle? This is not exactly something I would recommend to someone as a career if I were a high school guidance counsellor, but if you already have a lot of drive that direction then, as Joseph Campbell would say,
follow your bliss.
There is a really good thread about how to weed out bad trainers in the FAQ (
http://forums.jpfitness.com/cgi-bin/...c;f=1;t=000023 ), so go there and see if a career trainer is what you want to be.
Once you have established that, you may well be on your way. Depending on where you are in SoCal, you are pretty close to one of the best the country has to offer in Alwyn Cosgrove. Don't know if he takes on students or interns, but it can't hurt to check him out and email him. His site is
www.alwyncosgrove.com.