I haven't attempted to quit smoking yet, but I have been working on staying sober from alcohol and drugs. Early on (12 years ago?), I had only been diagnosed DID for a couple years, and I started going to AA. I never really spoke about the DID at that point with anybody, even my sponsor.

I had times, where I dissociated and the other personality purchased alcohol, drank and I came back around while drunk. I decided it was a relapse for me because the substance entered my body, BUT I would start justifying allowing myself to keep going once the other personality had started.

When I started having more communication thru therapy and journaling, we as a system came up with some ground rules. Mainly, I was the only one who could purchase the alcohol and I was the only one who could start. If I decided it was time to try to get sober again, no one could drink unless I gave permission. I had to enlist my protectors to help with this. If anyone attempted to enter a liquor store, other than me, they took over. Also, if I went in one, they would try to talk me out of it, which did actually work a few times. With AA, there is a lot of emphasis of being held accountable, and I basically put that in place within the system as well.

Also, a side note... to cut down on how much I smoke, I put an age limit on it within the system. I had found that some of the younger alters (13/14) would smoke an entire pack in a couple hours, if no one was paying attention, so I made a rule where the alter has to be 17 to smoke, and asked the protectors to keep an eye on the younger ones with that.

After awhile, everyone just got used to it all, and there weren't any issues anymore.