I handle booze better than anyone I have ever met. I can ingest massive quantities of the stuff and remain chill. I get complimented on it all the time...

I am a large man but that's only a factor - I've seen people my size get trashed with a fraction of what I drink. In addition, I think I have gradually developed an exceptional tolerance of years of measured, near-nightly drinking, especially in my 20s (late 30s now). Back then I drank nearly every night, out or at home. But I always knew to stop when I got adequately buzzed (that's another factor, self-awareness/control). Over time, the quantity required to get there increased, but the awareness/self-control never waned.

Self-control also extends to how I behave when i drink. Sure I am less inhibited, but I never become a different person. And certainly not an asshole.

I have never underunderstood why people drink themselves sick. I drink because it's fun. What's the point of going beyond that? Now, I will admit to the rare lapse. But in 20+ years of drinking, I can count on one hand the times when blacked out or had to barf.

Finally, my hangovers also don't appear to be as severe as everyone else's...

Before you ask, no I'm not an alcoholic. Nowadays I drink considerably less often than I used to, and binge about a week or so.... Back in my 20s, I drank and partied to numb profound dissatisfaction with my life, and i knew it at the time. I am at a much happier place now.

Td;lr: exceptional resistance to booze due to a combination of size, built up tolerance, self-awareness/control (i know when i am reaching the right buzz or nearing overboard), personality (i hate seeming out of control), and probably genetics (after nearly 2 decades of processing enough alcohol for a lifetime, my liver enzimes are normal. Go figure) .