How much vodka is needed to get drunk

I’ve been experimenting with alcohol for the past couple of weeks (not daily ofc) trying to get drunk or even tipsy but it doesn’t seem to work for me.

I have a bottle of grey goose that i’ve gotten nearly to the bottom of over the past two weeks and not a single time after a day of drinking would I feel anything. I don’t drink it straight up I mix it with sprite/fruit punch/whatever because the taste is unbearable and that’s already a problem on its own. I really do feel like im drinking a lot but i just don’t feel anything. Maybe im massively misinterpreting how much im pouring into my drinks but i doubt it

Am i just not a lightweight? Or something? Am i forcing myself to miss it? I dunno. I should also note that i wrote this post after downing a sprite that i’d say i poured a very fair amount of vodka into. Tasted like shit but I managed to get it down. Still nothing. Idk man.