Proceed in a gentle manner Bill. I've seen many "see the light" and try to solve ALL of their "issues" at the same time - like the old time plate spinners.

I do think smoking cessation is high on the list of habits you can change that has a significant out come. Rarely is it that I find a smoker who wishes they could smoke again, there are a few but they are exceptions and usually exceptionally fidgety

I wish you well, do what you think is the right thing to do today, if that is ceasing smoking, so be it! I have not heard anything about affecting BG but I'm not very well read in that area so experiment