Demi Lovato was remarkably candid in her 'Stay Strong' documentary that premiered last night (March 6), but she admitted that it wasn't easy.

"Doing the documentary was so interesting, because I've never had cameras crew following me around documenting my personal life," Lovato said. "So it was kind of a challenge to open up to cameras knowing that it would be in front of the world. I felt really vulnerable, and I still kind of do tonight, knowing that that's in front of the world," she admitted. However, Lovato is happy she did the doc. "But it is what it is, and I wouldn't change it," she added. "I know that some girl out there needed to hear this story tonight."

Lovato explained that being onstage is easier than opening up. "When I'm opening up about issues that can be taboo to talk about -- self harm, eating disorders, being bipolar -- it's kind of like, 'Hey world! This is how screwed up I am!'" Lovato maintains a sense of humor about her serious situation: "It's totally fine! I joke about it now!"

While the footage was mostly from last year, Lovato reveals, "I'm doing awesome right now. I'm living a really healthy lifestyle, and I have the support that I need. It's not easy, I struggle every single day -- but I'm in a really good place today."

Why did she want to show her fans her recovery process? "I remember being 12, 13, and going through these issues alone," Lovato explained. "I didn't really have a celebrity or anybody in the public eye to look at and say, 'Well, if she got through this, then I can get through it.'" Lovato said the media influences affected her body image. "I grew up when celebrities were getting really, really skinny, and it was the trend to be really, really thin," she said. She clearly wants to be a healthy role model for real girls who have real bodies, and she's to be commended for that!

"I feel insecure all the time. At the end of the day, I'm a 19-year-old girl. I'm trying to face the world and be a singer at the same time. I get insecure all the time, especially before red carpets and things like that," she said. "I just have to remind myself that my health comes first and as long as I'm happy and I'm healthy, nothing else really matters. Other people's opinions or my own flaws, whatever."

So how does Lovato get over those hurdles? "It helps to even look in the mirror -- and it sound so cheesy -- but if you just look in the mirror and say, 'You are beautiful,' and 'You are worthy,' those things really help you."

"I realized I don't want any girl out there right now having to go through this alone if I can share my story and help her out, whoever she is," Lovato added earnestly. "It might be my own little sister one day. I just wanted to share my story."

Watch Demi Lovato on the 'Stay Strong' After Show

Watch Demi Lovato Dish on Her Rolemodels

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