Resilience is so important- once we build up some sober muscles, as in days and weeks and...we grow stronger. At first, we just have to not drink. I love to do lists- yours is awfully long compared to what i could do at first!!
Setting ourselves up for (sober) success as much as possible is the most important thing as we start. Whatever it takes not to drink. I couldn't get hold of my thinking (good or bad) for a bit - I just had to not drink, and keep using others' help.