too bad. you're a girl. you must have your principles like not to drink with your datemate unless you know each other at least 3 years. something like that. because sometimes boys take advantage on that thing, making a girl drunk, hits her, and then sometimes leaves her like there's nothing happened. too sad for you pal. just a friendly advice here.
It wasn't a good idea, you shouldn't drink too much unless you know the other person because you could make the wrong first impression or they could take advantage of you. I wouldn't drink on a first date because I turn into a person with no filter lol.