Demi Lovato: “Be Careful Who You Trust"

Demi Lovato has learned a great deal this year. After months in rehab last fall, the part-Mexican singer/actress decided to open up about her history with eating disorders and cutting behavior when she was released this spring.

“I'm in a much happier and healthier place now, so I'll be able to decide when I need time off,” Lovato said to with regards to finding her work-life balance. “It's a different era in my career.” Different, indeed. The 19-year-old’s stardom has since shot skywards – her first single “Skyscraper” was a huge hit on iTunes and she’s now prepping for her fall tour.

WATCH: Demi Lovato Opens Up About “Self-Medicating” & Becoming a Role Model

The teenage star also says it's important to know who has your back. "Just to be careful who you trust," she says. “Sometimes you don't know who you can and cannot trust. I still learn that over and over again.”

Demi Lovato Premieres Music Video for “Skyscraper”

Lovato also expressed her feelings over her upcoming tour, which she has already released dates for. “I'm so excited to get back on the road,” she said. “With this tour, I'll be playing piano and guitar and dancing to songs from my new album.” And we know her fans will be there to watch. “Some of my fans have said that because I've been able to speak about my issues, that they're not afraid to speak about theirs,” Lovato said of her fans’ dedication. “Which is an amazing feeling.”

In an appearance on Access Hollywood Live yesterday, the teen star spoke about someone who was there for her during treatment - fellow part-mexicana Selena Gomez. During Lovato's time in treatment, she said that Gomez called her in tears. "She's definitely one of my closest friends," Lovato said.

Check out Lovato's interview below: