Your story sounds similar to mine. My attempts to control drinking just ultimately lead me to regress back to my prior levels of drinking within a few weeks. I can only control my drinking habits in the short term. If I have one on a given night, I will sneak a second in within a day or two, then eventually just slide back down that hill.
I am not out of the woods by any stretch as I am on my 5th attempt to abstain this year, but I think you will find that abstaining for a month period or so will actually be easier than moderating.