Demi Lovato reveals why she self-harmed
The new US X Factor
judge went to rehab in October 2010 for physical and emotional issues after a breakdown while on tour with ex-boyfriend Joe Jonas, which saw her punch a backing dancer.
Demi admits she cut herself to deal with her negative feelings.
Demi told Self magazine: "There were times I felt so anxious, almost like I was crawling out of my skin - that if I didn’t do something physical to match the way I felt inside, I would explode.
"I cut myself to take my mind off that. I just didn’t care what happened. I had no fear."
Former Disney girl Demi is now happy and content - and working on staying that way.
She continued: "I make time for myself and meditate. I've spent the past two years getting over an eating disorder and issues like self-harming and bipolar disorder
."I have to work on this stuff every day. I'm reminded of that whenever I eat or feel down."
Demi, 19, admits her bipolar diagnosis made things a lot clearer for her.
She added: "Finding out I had a real emotional disorder helped me put together the pieces of the puzzle.
"I remember being on my tour bus thinking, My life is so awesome right now, but I’m so depressed.
"Then, a few days later, I’d be on top of the world. It was really confusing. When I got diagnosed, my life made more sense."