Eleanor, good for you. I used to make sure I had my new stash before closing time too. Since I stopped drinking, it's nice not have that burden and not to see myself prioritizing the alcohol over the groceries. Lots of times I would consider going out for groceries or some other errand and feel like I didn't want to go and would do it another time; yet a few minutes later, I would wind up on my way to get alcohol. Talk about priorities and double standards.
You will probably (or possibly) find yourself gaining confidence with each week that passes. As far as days gone by without drinking, I am in the 130s now. There were times I had a "home free" feeling, like it would not come back, but there were also times that thoughts about alcohol would creep in, even in the last week. Not a good alternative for me. I don't want to die drunk, to put it bluntly.