The singer and X Factor USA judge entered rehab in 2010 and later claimed that the treatment saved her life.
> Ten Things About... Demi Lovato
"We need to make mistakes in order to avoid them in the future," Lovato told OK.
"I made a lot of mistakes and I've grown into a better person because of it.
"I don't let my schedule determine who I am. I don't fly around the world constantly. I don't work 24/7."
She added: "You need to be careful of who you hang out with, people you listen to.
"They can lead you down the wrong path, they can give you the wrong kind of direction. Try to stay away from the temptation."