My first step is starting to drink water more and to get on a normal sleep pattern...
I do this week long summer camp thing each year, I'm a volunteer, and we get three meals a day... breakfast, lunch and dinner... theres a ton of walking to be done... this is held at a college campus... I always manage to lose about five pounds when I'm there... Its the balance of the food... and the fact that I end up eating more salad due to the regular food being less palatable.