Credit: Hilary Walsh/Nylon

Unlike some of her peers, Lily Collins has a good head on her shoulders.

"I have no idea what will happen after Mirror, Mirror, but I love that I can still do what I want to do on a weekend, like go to the flea market. I don't ever want that to stop," the 22-year-old actress tells the March issue of NYLON. "I don't want to suddenly have to sacrifice parts of myself, and I don't feel like I am, knowing that people are going to be more interested in my personal life."

Collins adds that she never went through a "party" phase like former up-and-comers Lindsay Lohan and Mischa Barton. "I never did do the whole drinking, drugs [thing]," Collins says. "That wasn't ever me and is never gonna be me."

Collins, who was recently spotted holding hands with Zac Efron, 24, says she's more focused on establishing her career. "I don't want to acquire whatever 'fame' is," Collins tells NYLON. "I just want to be able to continue doing what I love to do."

Snagging the coveted lead role in Mirror, Mirror (opposite Julia Roberts and Armie Hammer) was a dream come true for Collins.

"Growing up in the English countryside, I would go out into the fields and create my own stories, and I would run around as if I was in a movie," Collins explains. "That's why for me, playing Snow White was a crazy dream come true, because I've always been someone who would read books and then go and make a movie in my head."