When Tina Fey wrote Mean Girls, she drew more inspiration from her own past to craft Queen Bee Regina George than you might have guessed. But now Fey realizes that it's never grool to be cruel

Fey told Net-a-Porter's magazine The Edit that she was mean in high school as the way of dealing with her own insecurity.

"I was [the Mean Girl], I admit it openly. That was a disease that had to be conquered," Fey said. "It’s another coping mechanism – it’s a bad coping mechanism – but when you feel less than (in high school, everyone feels less than everyone else for different reasons), in your mind it’s a way of leveling the playing field. Though of course it’s not."

Fey says she still feels tense around teenage mean girls — some things never change.

But she managed to move past that and ended up with some killer female friendships. While she and Amy Poehler were filming Sisters over the summer, they reunited their old SNL crew and had pool parties with Rachel Dratch, Maya Rudolph and all their kids. Watch out for new comedy dynasties.

Fey reminisced about meeting Poehler, and yes, everyone has always loved her, "I remember counseling so many guys who were just immediately in love with her. It was a phase that every Chicago improviser had to go through – ‘I’m secretly in love with Amy.’"

Fey also offers the secret to immortality: “Steer clear of the internet and you’ll live forever."