how much is too much?

to start, no i’m not trying to commit. i’m planning on drinking a lot this weekend, more than i’ve ever drank before. i’m 1,85 m/6’0 tall and weigh 64 kg/141 lb. the most i’ve ever drank was a fifth (750 mL) of 40% abv vodka on an empty stomach in one sitting. will i die if i drink more than that? how much is a comatose or lethal dose for my body?