I started drinking every night when I was 20 in 2012.
I drank 4 or 5 or 6 drinks every night, still functioned just fine.
At some point around 2014, I started drinking up to 10 shots of tequila every night and was still okay.
Around 2015 I'd occasionally wake up in the middle of the night on days off and drink an additional 6 shots or so, enjoy my drunkenness, do chores and such, ...