I found the drinking cycle to be three days.
1) Drink and get blotto, 2) next day hungover and swearing to quit, 3) day three feeling better, thought creeping back in, then bam, next day back to day one- drink and get blotto.....
You have to break that cycle. For that you need a plan of action. As a therapist once said to me. You cant keep walking down the same street and expect different results. Walk down a different street... think of some things you can do next time the craving hits and also expect it may be hard for a bit.