Traveling for work

I guess to make a long story short I had to go help another warehouse that was in dire need of help. I live in Nashville and the plant is in pennsyvania. I am soo struggling with eating. I have been doing really good but have been incorporating some bad carbs here and there. I am truly ashamed but there is sooo much food here. OMG And these people eat and eat and eat..It kinda makes me sick. I don't have a scale to scare me and I am worried I don't have my scale.. I am starting a new day tomarrow I wil not go back to the carb eating anymore.. I just hate not knowing what weight is doing.. The good thing is that I am exercising I walk about 1.5 miles per day for 3 to 4 times a week and work 12 hours a day 7 days a week. I will be on this schedule for 7 weeks. Please give me some advise or some comments on what I should do. I have been doing really good on my eating its just them damn peanut m&ms..