re: Can’t sleep if I don’t drink enough alcohol.

My amateur suspicion is that you have an anxiety and insomnia problem you're treating with alcohol, which is more or less creating a chemical dependency on alcohol. Probably not what most people think of as alcoholism, but still, not great.

My wife wakes up in the middle of the night and works for a couple of hours all the time too. Melatonin has helped in the past, but I think more than anything exercise, a set schedule and strict rules about phones makes the most difference. When she wakes up and her phone isn't there, she goes back to sleep. When it is, and she gravitates toward reading some emails she's going to deal with tomorrow, she's up for 3 hours. Then you're in a cycle of anxiety and sleep deprivation that just snowballs.