Faris said that part of the reason why it took her longer to cultivate female friendships was interactions she had with “mean girls” growing up who would taunt her by snapping her bra straps and by writing obscenities on her locker.

“It takes vulnerability of spirit to open yourself up to other women in a way that isn’t competitive,” she said. “That’s especially hard in Hollywood, where competition is built into almost every interaction.”

Unqualified is set to hit shelves in October, and the memoir will share more intimate details about Faris’ life and relationship with Pratt.

“It’s just my experiences,” she said of the project recently on her podcast of the same name. “It’s just sort of how I felt as a really quiet kid with headgear and then suddenly being an actress in L.A. Basically how I haven’t felt comfortable in my own skin.”

This article originally appeared on PEOPLE