It took 7 years of freedom from drugs and alcohol for me to find the gumption to tackle cigarettes. It was the hardest thing I've ever done. Personally, I don't recommend entering the stress of stopping cigarettes until you have the time of solid sobriety to help you quit. You have enough on your plate...jmo/ime, of course.

Having what you have in your refrigerator probably isn't conducive to the separation of you from your "best friends". Please consider widening the distance.