I suck

Classes started again yesterday, and since then I have had three candy bars, two bags of chips, and two McDonald's cheeseburgers. I am completely disgusted with myself.

It's not even like I was scraping through the vending machines because I didn't have time to grab food. It's been more along the lines of me looking at the nine textbooks I had to buy yesterday and thinking, "Oh, shit! Where's the chocolate?"

Does anyone have any hints on how to stop this? I know I eat when I get stressed, and I can already tell that this semester is going to be bad. I really don't want to gain back the weight I lost, but I seem to have no self control lately.

Gods, what do I do?