I smoke, and my guess is that this is an attachment, yes?
I've smoked for many years, and every time I've quit, even for months, I've been unable to control my emotions. It was as if terrible stuff was coming to the surface, stuff that my smoking kept stuffed. :D
It's only been a short time that I've been practicing controlling minor emotional downs by remember in that they are ephemeral, by viewing that dispassionately and by using mindfulness.
Now that I've had a little practice, I thinking of trying to quit again and employing what I've learned. Any advice?