"I think that if I had started now or just a couple of years ago, after the age of 14, if I had waited two more years, I would be wrought. I couldn't deal with the scrutiny," Contactmusic quoted her as saying.
She added: "I feel like starting out as a teenager may not have been as good. I conquered fears at a young age because I wasn't considering them, I just took them for whatever."
Kristen debuted in 1999 Disney movie The Thirteenth Year at the age of nine, since then she has done more than 20 films.