Kirstie says that no matter her weight, she knows that only she can be the one responsible for controlling her weight issues.
"I feel fortunate," Kirstie says. "I think you should sort of spend 80 percent of the time living your life and creating a beautiful life for yourself and others around you, helping people. Then, maybe 20 percent of your life worrying about what you look like. And if you get to a certain weight, you can forget it!"