Bethedee, a lot of people think that the first year of college is the hardest but I can definitely see how your 3rd year would be quite stressful. You are either headed to graduation or to graduate school and possibly getting ready for a job; perhaps you have some unknowns ahead of you.
I don't know if this would work for you and in no way am I suggesting that you change any eating patterns that work for you, but I wonder if you might find it useful to save the bulk of your calories for the time when you are snacking anyway. EVEN if what you are eating during that time is exactly what you would be eating anyway, at least you will not be adding to the calories but staying within your limit. Also, since so many of us overeat (or binge) because we "blew it anyway", you may feel like you are in control because you are eating the nr. of calories that you planned for. This may reduce the overeating borne out of a feeling of loss of control.
As for the exercising, I understand completely that it is difficult to fit things in, so can you, perhaps include some small things during your breaks from studying, even if it is some isometrics or exercises you can do in your room? Also, perhaps you may be able to walk to classes, take stairs, etc., if you are not already doing that. You can EVEN do some abdominal/breathing exercises DURING your classes, that nobody would even know about or some of those subtle leg lifts that nobody would see (you lift your feet off the floor by a fraction of an inch). Isometric exercises with your arms would also remain unnoticed by your classmates. Even something like butt tightening will be your "secret". You can achieve quite a bit without anyone being the wiser.
Good luck with your schoolwork as well as your health regimen.
