Why didn’t I get drunk

So last night I was out with my friends and my goal was to get drunk or atleast feel something but didn’t feel anything I had 2 naggins 400ml vodka a double vodka white and a shot and felt completely fine. I have only started drinking like the end of last year the most I had before this was like 4 pints over a long period of time so thought I would get very drunk but my friend who drinks a lot more often had about the same as me maybe less was completely wasted getting sick and falling on the ground every time I wasn’t holding him up I just can’t understand why I was completely normal