@SmellyOldOwls
Learning to drink in moderation is much better than having one totally dry month so don't worry. It's good to have a restart every now and then to stop drinking creeping into weeknights.
I agree that cutting-down is a much better approach than cutting-out. If you try and cut-out you're much more likely to fall off the wagon, as you have done OP.
I heard some great advice recently - 10% approach.
Identify the stuff you want to cut-out then start off by cutting-down 10% at a time until you're at 0, or at a level you're happy with. So, have 10% fewer drinks over the course of a fortnight (week, month, whatever). Then the next block of time, have another 10% fewer. And so on.
Then for stuff you want to do more of, do the same thing but add 10% each time. So, 10% more exercise this month, 10% more exercise on top of that next month and so on.
I'm finding it works really well in both directions (taking 10% off bad stuff, adding 10% to the good stuff).
Don't beat yourself up, OP. Start again 