Demi Lovato admits she was 'a nightmare to work with' before sobriety

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Demi Lovato is mindful of not returning to her old habits.

The "Confident" singer candidly addresses her past struggles with sobriety in a new interview with Refinery29, detailing how getting clean has required her to make significant changes in her life.

"I had to learn the hard way that I can’t do parties anymore," the 23-year-old singer reveals. "Some people can go out and not be triggered, but that’s not the case for me."

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