For frequent drinkers your liver can do a significant amount of healing if you quit for a month a year, the process will ordinarily lead to a few pounds in weight loss even when people are not dieting or trying to lose weight, and other health benefits. I think sometimes when I do this I might quite permanently, but I don't go into it thinking "Okay, never again." I go into it thinking "I need to lay off the booze, maybe I'll make it permanent I dunno but at the least I need to take a break."
There have been studies on this, quitting for a month lowers your alcohol tolerance, that is you will be able to get buzzed off of fewer drinks. In studies they've done on this people that quit for a month will lower their alcohol consumption for months afterwards. It's also an important discipline exercise, and life experience. You do this thing all the time, can you not do it? What's that like?
I was really hoping to do no caffeine this year along with no alcohol but I'm towards the end of a year long probationary period on my job that ends this month, I am a little worried that eliminating caffeine will hurt my performance and I don't want to make too many changes at once, maybe next year I'll do no caffeine along with the no alcohol.
Part of my interest in no caffeine is that alcohol, caffeine, pretty much any substance you put in your body is effecting a bunch of brain receptors in order to have the effect it's having on you. I think you could increase the effects of all this stuff and probably keep your brain in better health if for one month a year you cut out any substances that aren't just normal food and water.