Why is alcohol not hitting me up like it used to

Hey there, new drinker here.

It hasn’t even been a year since i started drinking occasionally. And i’m just wondering why alcohol isn’t hitting like it used to. When i drank alcohol on my beginnings it was amazing. Confidence thru the roof, more light headed, i kinda zoned out, felt like a different person which is what i was after.

Now a year later, i try to get in the same state when i drink, but it’s not the same. I’m me, but I’m drunk. I don’t really have that hard personality change i’m looking for. And it’s not even a instant happiness like it used to be. Now i just get sad. Not to say i don’t enjoy it all because i do but definitely not like when i started it. Is it like a relationship where its all honeymoon at the start or what?

Possible reasons that could be the reason: I started drinking with my first love, actual girlfriend. The blissful experience that was, and now that’s over.

I am drinking alone now more often, and i never pop out in the “party mode” by myself.