Thanks for your messages guys!
The gig went very well, and I didn't drink.
The first guy who was playing was drunk on stage, drinking directly from the bottle, and that made me a little sad, for some stupid obvious reason (he's cool and rock'n'roll and you're not, said the bad guy in my head)
Also I was really worried after the show, cause some guys from another band whom we had toured with a couple years ago came backstage, and needless to say we used to drink A LOT together, and of course everyone from both bands started drinking.
I stuck to water till someone said he was going to the hotel, and so I left, saying I was exhausted.
So here I am, at the very beginning of day 5.
Good night everybody, sleep well!