If it makes you feel any better, I gained 35 pounds in 10 months when I quit smoking 7 years ago
Just get back on the horse, it'll come off if you put your mind to it! Im in the same boat with work and commuting. I work 12 hour shift work and commute an hour there and an hour back. It's hard to fit gym, boxing, hockey and eating half decent into that kind of shitty schedule, but it can be done. Good luck to ya!