Paris Hilton is producing a documentary for YouTube, where she’s unveils a new side to herself.

In This Is Paris, the star discusses the mental abuse she underwent as a teenager at boarding school in Utah.

“I’m nervous,” she said in a clip. “I’m shaking. It’s hard to even eat, because my stomach is just like, turning. I don’t know — it’s something that’s very personal, and not something I like talking about.”

“No one really knows who I am,” she continued. “Something happened in my childhood that I’ve never talked about with anyone. I still have nightmares about it.”

A description for the film writes:  “This Is Paris uncovers the hidden past of the international icon. As Paris confronts the heartbreaking trauma that forged who she is today, this deeply compelling portrait tells the real story of a teenage girl desperate to escape into a fantasy and sheds new light on the insta-fame culture that Paris helped to create.”

Head over to People magazine for a sneak peek. We’ll definitely be checking this out.