Health Question

Hey guys I made a really bad decision 4th of July night and I feel really dumb for it so just wanted to seek some guidance. I had a giant party and decided to buy a 750ml bottle on don julio for just myself. I quite literally drank the whole thing in about 4-4.5 hours by myself because it just happened to be near me the whole time and I was just sipping it. I guess my question is: what caused me to do that? I don’t normally get excessively drunk but it kind of just happened. I feel like that wasn’t a normal occurrence. (I normally only drink beer, and only up to like 9 total)