I have had to use alcohol to come down many times in the last 21 or so years. Benzos are the right way to do it, compounds like Trazadone, Propranalol, Benadryl (OTC), and Seroquel can help you get to sleep once you have stopped taking more methamphetamine but still feel amped. Melatonin and Magnesium supplements, Valerian Root and Chamomile herbal products are also going to help you get a more quality sleep, so take those if you can along with the booze, which will actually slow down your overamped CNS quite quickly and directly.
I regularly do this and am doing it right now, but I dont disagree with the above. Not exactly anyway. It actually is nice in a way, just watch out for winding up in a volatile state. Keep the amount of alcohol to a happy medium and eat and drink water too.
Benzos are better for this than alcohol.
Hopefully you are a normal citizen when it comes to alcohol, and three or so drinks will make you sleepy. If you are a veteran alcoholic like me, you might need to drink a lot more to be effective, and you people know who you are. It might be tempting to do so, but I don't recommend drinking past whatever your limit is when using alcohol on its own.
If you're doing this make sure to get enough electrolytes too!! Hydration is not only about water, you need at least some salt and ideally magnesium and a source of potassium too. (Never take potassium supplements unless you really know what you're doing, it can give you an arrhythmia if you take too much)
Heavy drinkers and stim users should take a vitamin B supplement as well.
An Emergenc-C packet will also be of great aid. I also recommend some sugar free Gatorade or Powerade, or a Pedialyte, just don't overdo it.
I’d go for relaxation/mindfulness/breathing techniques, warm baths, long walks, chill music, watching TV until the next night. Basically anything to avoid alcohol triggering some kind of mood disorder like depression, anxiety, anger, rage etc etc.
This is great advice, you have some time to kill anyways so build up your mental health toolbox while you are at it.
What has me curious though is the stark difference in felt effects between benzos and alcohol considering they're both targeting the same receptors/region.
I think it is the blood brain barrier differences. Methamphetamine and Alcohol both hit you "like that", the onset is negligible and the maximum effect of a dose is reached before you know it. Benzos have different onset lengths, longer effective periods, and a more gradual increase in effect over time.
IMO a nice pint of beer is a welcome way to end your stimulant or psychedelic-hallucinogen adventure. Like at the very, very tail end of your experience, when you're about to pass out anyway from sheer exhaustion but are content to wash an OTC sleep aid down with a pint of some refreshing beer and zone out to some meaningless TV.
I think this is the best advice besides the mindfulness and wellness tips Aletier3 and others suggested. Don't drink throughout your binge, or even during your last methamp or amp dose. Wait until the euphoria has worn off and the ragged feeling you were starting to have before the redose is evident in the periphery. The ETOH will overpower that shitty feeling and mask it enough with alcohol's euphoria and you will hopefully pass out before that wears off.
I usually wake up 2-3 hours after using alcohol this way. If it happens to you to, I suggest you go use the toilet, eat a quick snack or light breakfast (something you can prepare quickly without waking yourself up making something fancy), scarf that down, and go back to bed. I am not going to lie, I usually breathalyze myself at this point and if I can afford to time wise, have another drink to help me nod off again. Probably not a good idea, but I am a stubborn alcoholic so it is as natural as can be for me to do things I am not supposed to.