How old am I?

I get it. I look younger than I really am. But how old do I really look? Or rather, how young can I really look? I have an audition tomorrow to play 12-14. Yup, that's more than 10 years younger than I actually am, and personally I think 15 is a stretch.  But 12?! Are you crazy?! My manager says that I can pass for a 14 year old and this is "TV 14" we're talking about here, not real life 14. I'm still not convinced, but I guess we'll see. What are preteens wearing these days?