Even in my teens/20s, no matter how much i'd had to drink or where i'd ended up - i'd always find some way to get to a proper bed in a safe place. My own home, or a good friend's. (Often the birds were singing by then, and the milkman had been,but i would still manage it ...
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OP a couple of years ago my DH fell in with some friends who seemed hell bent on reliving their 20s. These people were late 30s to mid 40s. Weekends of drugs, drink, stupidly late nights, fights, throwing up in hotel corridors ....
Every few months DH and i were invited along. He and i would go, but skirt around the worst of it (no drugs, no fighting) but would get legless and be badly hung over for a day or two afterwards. No where near the state the rest of them got in.
I got pretty upset after the last outing. I was stressed and tired and we had stuff to do. DH admitted he'd had enough of it too. Thank Christ :)
Be true to yourself OP. If you're not going to enjoy it - don't go. Or find a way to make it doable for you. On these outings i described i would insist on a decent hotel in a room well away from the main 'gang', so we could escape the worst of it. Ridiculous. I wouldn't do it again.