Jill... I heard this somewhere and I think it was good advicee.
"Don't run away from being fat.
Instead focus running TOWARDS a new healthy life style."
What is the difference you may ask.
When you are running away from being fat... once you get there your incentive is less. You become less fat and thus your determination is lessened.
But if you run towards better eatting habits, better exercise habits, better health... you always are moving forward.
Just some food for thought.