Having been through some dark times herself, Demi Lovato now wants to be a good role model for young people.

The 21-year-old star spent some time in a rehab facility back in 2010 and knows how important it is to set a good example.

She told Entertainment Weekly magazine: ”That was my excuse to do whatever the f**k I wanted and not give a s**t about what other people thought. Then I ended up going through some stuff. I realized I’m never going to escape the fact that I’m in the public eye, so I might as well do the best I can.”

The brunette beauty is thankful to her fans for helping her overcome her problems. ”When I was in treatment, I honestly thought my career was over. But when I came out of treatment, I had more supportive fans than ever,” she said.

Demi has signed a deal to write her memoir. She said: ”I’m battling with internal thoughts on how honest I should be. Yes, I’ve been very honest, but if people really knew how dark and deep my struggles got — not just with my eating disorder but with drugs and alcohol — they’d be really shocked. But I’ll most likely end up saying everything. Maybe it’ll help other people in the industry who are headed down the wrong path.”

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