Something that came to mind, vaguely related:
If you plan on running to lose weight: don't. Go swim laps in not-too-warm water daily for some time first. The body will burn calories just to keep its temperature up, you are exercising, and you build muscle mass in more places.
Larger muscles burn more with every movement than small muscles. Getting in shape swimming will make running easier. Losing weight before you start running will prevent your joints' exploding.
Whatever habits you form, if you change your habits back, you will grow fat again.
very well said. I actually tried to stay away from regiments like exercise because most people don't stick to them. This is the simplest method I could come up with. Also exercise raises appetite. a lot.