I was in exactly the same place a few weeks ago. I also just finished my freshman year of college, and I had like 7 finals with papers, exams, oral presentations...yikes! Needless to say I stress ate a lot and gained 3 or 4 pounds in just a couple of weeks. But now that I am home it is a lot easier for me. Just telling my mom that I am doing WW has helped to keep me on track so far. I am a bit of a perfectionist, so telling her really makes me want to stick to it. If I don't stay on track it's almost like I've failed my mom in some way, even though I know I haven't.
First I started to track how many points I was eating throughout the day. I didn't change my eating habits at all, but realizing how many points I had been eating led me to want to change it. I was way over every day, eve those days I thought were "good" days. That might be a good first motivating step

I also have been drinking a lot of water whenever I feel like binging.
Good luck! You can do this!