You said it right there...
" I was so relieved when the beer stores closed"
I did the same - and still do - chewing my knuckles knowing it is 6.30 and I could just make it before closing ( 7 ).
The difference in feelings while the store was still open ( intense anxiety ) versus after it closed ( huge relief, crazy laughter, ) told me that I might be crazy, but at least tonight I would sleep well and wake up tomorrow free from some crappy hangover and the whole sorry process of aching for the first drink.
It hasn't got any easier for me ( I'm back on day two right now ) - but I have started to enjoy ( a little ) the psychological adventure that I am embarking on.
You sound to me like you are doing fine, old boy
