A source tells ET that the 26-year-old Tell Me You Love Me artist is still sober and committed to her sobriety, just over eight months after she was hospitalized for an apparent overdose last July, and her subsequently rehabilitation treatment.

The source says Lovato cut ties with everyone on her team and has started fresh.

She isn’t spending time with the people who helped "enable” her, the source continues, adding that she is living in a condo near an outpatient facility in Los Angeles.

According to the source, the road to recovery has not been easy, and she has hit a couple bumps in the road -- and had to return to the inpatient facility for short stints -- but for the past 30 days she has been on her own and doing really well.

Lovato is eager to commit full time to her career and that’s really been what’s motivating her to stay healthy, the source says, adding that the celebrated singer is really inspired and feeling excited to get back on stage.

It was announced last week that the Jonas Brothers had recently reunited and, with the release of their first new single in years, that the music siblings would be going on tour once again. This surprise reunion immediately sparked speculation -- and wishful thinking -- among fans that Lovato, who has long been friends with Nick and Joe Jonas, might take the stage with them as part of their tour.

"Demi joining the Jonas Brothers is very much a possibility, but nothing is confirmed at the moment,” the source says.