Well, pharmacy is a very stressful job and the studying for it isn't any easier and yes, stress will make us gain weight.
I find that having meals prepared (I usually cook on Sundays) can be a real advantage. I even have snacks (cut celery, nuts, etc.) portioned out and ready to go. It's actually a nice feeling that when that urge comes, you have healthy choices ready to go and you can gain confidence that you made the right choice.
PM me if you want to chat a bit. I've got 20+ years of pharmacy under my belt... and on my waist!
BUT-- I'm making changes too!