The "Sorry Not Sorry" songstress further thanked the medical staff at Cedars, her family and team, sharing, "Without them I wouldn't be here writing this letter to all of you."
Lovato concludes, "I now need time to heal and focus on my sobriety and road to recovery. The love you have all shown me will never be forgotten and I look forward to the day where I can say I came out on the other side. I will keep fighting."
An insider previously told E! News that Lovato was expected to leave the hospital in the near future and head straight to a rehab center. And after suffering from extreme nausea and high fever, apparent side effects of the overdose, an insider revealed on Friday that Lovato had "turned the corner" and was "doing much better."
"She will be released in the next few days and the plan is for her to go to rehab. She is starting to grasp the severity of what happened and that she almost died," explained the source.
"She is scared and grateful to be alive," the insider continued. "Her family hasn't left her side and have consulted with several people to figure out what the best plan of action is. Everyone wants her to take it very seriously and she seems to be."
A second source said Demi hopes by seeking professional help for her substance abuse issues that it would serve as a "statement to her fans, family and friends that she is strong and can recover."
As of now, it's unclear whether or not Lovato remains under the care of medical experts at the hospital or if she's checked out.