No longer getting the same euphoria as I used to?

Hi, I usually drink once or twice a month. Recently I haven’t been feeling like drinking, mainly because I haven’t been experiencing the same euphoric feeling. I’m still able to get drunk, but it just is a physical state and not a mental one. It’s also very bizarre to be in that state and talking to someone, because I know I start to slur some words and nobody says anything, but in my mind I keep trying to sound clear.