Demi Lovato has been very open about her troubled past with drugs, alcohol and eating disorders. In a recent interview the actress shared even more about some of the darkest times in her young life.

According Us Weekly, Wilmer Valderrama's girlfriend was very open about her struggle. The "Heart Attack" singer revealed, "I couldn't go 30 minutes to an hour without cocaine, and I would bring it on airplanes."

She added, "I would smuggle it basically and just wait until everyone in first class would go to sleep, and I would do it right there. I'd sneak to the bathroom, and I'd do it. That's how difficult it got and that was even with somebody [with me].

"I had a sober companion, somebody who was watching me 24/7 and living with me [and] I was able to hide it from them as well."

Demi Lovato checked into rehab back in October 2010 which forced her to leave both the Jonas Brothers Live in Concert tour and her Disney Channel show, "Sonny With a Chance."

According to the publication, at the time of her abrupt exit from the network the star cited "physical and emotional issues," but in her latest interview "The X Factor" judge recalled the exact moment when she realized she had hit rock bottom.

She explained, "I was going to the airport, and I had a Sprite bottle just filled with vodka."

She continued, "It was just nine in the morning, and I was throwing up in the car and this was just to get on a plane to go back to LA to the sober living house that I was staying at. When I hit that moment I was like, 'It's no longer fun when you're doing it alone.'"

The "Neon Lights" singer also spoke about her eating disorder. She said, "It was always there, but then I just acted on it at around 8 or 9 years old."

She confessed, "I started overeating, compulsively overeating. I would bake cookies and then eat the whole pan. I went from doing that to being unhappy with my body.

"I went to just completely starving myself and that turned into throwing up and starving myself and it was just this crazy battle going on inside of me.

"It got really difficult [and] I would throw up, and it would just be blood and it was something that I realized if I don't stop this, I am going to die."

Lovato even admitted she began cutting herself when she was 11-years-old and struggled with bipolar disorder.

Since leaving the treatment facility in January 2011, Lovato has dedicated her career to being an ideal role model to her younger fans.

Do you think Demi Lovato is sharing too much of her personal life or do you appreciate her honesty?

Let us know in the comment section below.