Alcohol is no fun anymore

hey so,I’m 18 and i just now realized alcohol isnt the same as it was a few years ago. I started drinking when i was 13 (everyone was doing it at that time) i remember when i got drunk i was really careless and everythink went fuzzy and i loved everyone. Now i get that feeling maybe twice a year. And it doesnt even depend on what/how much i drink, im still like im sober/just a little bit more happy. Like do I have to drink more or is it like my body got used to it so it doesn’t react now or what. Should i do something different or what?