why can’t I get drunk?

I think I can get past the dizzy stage no matter how much I drink. When I start drinking with my friends I see them do things they’ll regret because of how drunk they are, they lose all reasoning, and I see the same thing in every media, so why when I drink double their amount I only get dizzy and then straight up puke without getting dumber? I’m not saying I want to, just wondering why I don’t