Replying to Being Healthy?

I've currently been supporting myself for the past 8 months or so. I'm very aware that I'm living a somewhat unhealthy life right now though. I can relate some of my problems to my work. I have 12-14 hour work days with only knowing my exact schedule the day before. I can also relate some problems to myself. I'm lazy. I'll admit it. I honestly want to change though. I need some help coming up with routines and methods to get back into shape and begin eating healthy again. Anybody have any similar experiences to this? How did you combat your lifestyle?