Getting back to my old self

So I was doing good for a couple weeks.... then Thanksgiving hit. I acutally did really good over the holiday. However, once I got back home and back to work (in a restaurant) I fell off the bandwagon. It is finals week, I'm stressed and therefore my brain is telling me that I'm STARVING all the time! I have never had just loads of self discipline, obviously or I wouldn't be in this state, but my Fiance is making it even harder. We are both really busy and have almost no time to cook so we eat out alot. I'm fine with eating out when we go to a sit down restaurant. However, we're really broke also so we've been hitting the fast food joints more and more. Most of them only have 1 "health" option but they aren't very good.... so I get a whopper and onion rings. I think I really just need someone to be accountable to if this diet is going to work. My FH is no help and I need to get back on the program.