Macy, I'm so glad you're moving forward! I haven't checked in for a while and all of this is great news. You are a force of nature, and won't AH be surprised to see the hurricane you've become?
Just to touch on the "one substance, all substances" thing briefly--I'm an ex-smoker, having smoked from about 15 to 36, quitting soon after XAH and I married. I am not an A, but during the first several months, I drank virtually no alcohol for 2 reasons: First, for me, a cigarette and a beer went together really well, so there was that trigger thing. Second, I'd quit before and always took it back up; I knew the process was that I'd be like "oh, I'll just bum a smoke, one smoke, what's the big deal?" and then I'd be like "well, I'll just buy a pack for tonight at the bar and throw the rest away tomorrow AM" and then I'd be like "well, it's a shame to waste these b/c they were expensive, so I'll just finish this pack" and then...you get the picture, right?