Play the tape all the way through.
After long weekends away on fishing trips with mates, drinking 18 beers and half a bottle of scotch (plus Lsd and Pot) for 3 days, I was a basket case for a week or more afterwards.
Couldn't think, couldn't sleep, couldn't eat, couldn't work well in my job.
After a long weekend now, I can do all those things and more.
Freedom from alcohol, it's a great thing