"Look, I will never speak on behalf of Demi because that wouldn't be right," Osbourne said. "I can only share about what I've been through and what I know from myself."
"Relapse is one of the hardest things we face as an open addict who has gone through the program and turned their life around," she continued. "I can't imagine what Demi's going through right now, even though I know what it's like to have the whole world talk about you in your most vulnerable state. People need to just show love and pray for her and know that it's OK. Just get back on track again."
Osbourne also wanted to make it clear that there is no cure for addiction; it's a disease an addict learns to cope with and manage.
"People need to know rehab doesn't fix you, it just helps you to get yourself on the right track," she said. "You're never fixed. You spend your whole entire life doing everything you can to never pick up and use again."
Osbourne is now 33 and has spent much of her adult life trying to maintain sobriety. She said she feels she has the ability to "be addicted to absolutely anything" but struggled the most with drugs and alcohol. Osbourne also said she believes her tendency to reach for those substances is something she was "born with."
"As an addict, when I wanted to relapse, when I wanted to use, I could have sober companions, I could have my parents there, I could have my best friends, I could have people who love and care and would do anything for me," she explained. "It doesn't matter who you are, where you come from or what you believe in [because addiction] takes hold of anyone and everyone if it can."
"It's an obsessive compulsive disorder, it's mental health, it's something that I believe I was born with," she continued. "I was doing things from such a young age that weren't normal."
Osbourne said she was "comfortable being numb" and that she "never did drugs to party."
"I did drugs because I hate feeling," she said. "Even if it was good things and happy, I didn't think I deserved it."
Osbourne added, "Sitting in a moment and being uncomfortable in that moment is really hard for me, but that feeling is so much better than the feeling that you have to face when you have messed up, when you have to go back and say, 'I have relapsed,' and face your life when it's a mess. There's no such thing as embarrassment when you're an addict. You skip that and go straight to shame. You shame yourself so hardcore."
It wasn't until she "reached a spiritual low" that Osbourne decided to commit herself to living sober. She said she knew she had two options: die, or make a change.
"I reached a spiritual low. I was so unbelievably miserable, I didn't care if I lived anymore or not," she explained. "I didn't care what happened to me. I didn't care who I woke up next to. I just didn't care about anything."
"For me, it was either I was going to die or I was going to get help," she continued. "I decided that I wanted to live, that life is worth living and that I have an incredible family and friends and why am I allowing myself to be so miserable? Every day I fight to stay clean. I fight and do whatever I have to do to be a better person."
According to TMZ, paramedics treated Lovato with Narcan -- an emergency treatment for narcotic overdoses -- when they found her unconscious in her home. She was transported to a Los Angeles hospital, where her rep says she is now "awake and with her family."