Taylor Momsen, Sweet 16? Not exactly.

Teenagers around the country tune in to Gossip Girl to see Taylor play Jenny Humphrey – a high school rebel with the obligatory, requisite teen angst.

But Momsen says she's hardly a typical 16-year-old in real life.

"I live a very adult life," the high school graduate (she got her diploma two years early!) tells Teen Vogue in its new September issue.

"What am I going to do, hang out with high school kids? I just can't relate to what they talk about – it all seems so petty to me."

That includes high school boys. Taylor Momsen, who claims to have been in "lots of relationships," says she could never date a guy who's also 16.

"Boys are so much less mature than girls as it is," the Gossip Girl actress says.

"I would eat a boy my age alive."

Instead, Momsen is eschewing the idea of a traditional college education, opting to take classes online, sing in her band, The Pretty Reckless, and act.

"I'm an artist; I'm not going to use trigonometry," she says. "For most people college is a place where you learn about yourself."

"I feel like I'm doing that already. I'm already independent."

But what about making new college friends?

"I have such trust complexes," Momsen admits. "I'm close to like, two people."

Still, all her insecurities fade away when she steps in front of a crowd to sing. Having spent her life in front of a camera, she's used to it, and doesn't mind if Gossip Girl fans don't "get" her rock star persona or her look.

"I'm pretty, but I'm not, like, a 'pretty girl,'" she says, adding that she modeled her new 'do on a Joan Jett photo. "I know people were a little, um, taken aback. But it wasn't me that changed – it was just that I decided to start being myself."

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.