As a 40er here I literally recognize all of this, with only the hair implants exchanged with botox ;)
And the deal with hangovers? Well compared that I was able to party like it was 1979 in the daily, I don't even think about a single wine at dinner as it will mess up my sleep and leave me more wrinkled the day after than a tossed away handkerchief ;)
RE: Musings on getting older and also booze