Why does alcohol make me feel utterly exhausted?

Hey everyone.

I am an 18 year old girl and tried drinking alcohol for the first time in my life yesterday. My boyfriend and i drank some Korn together at around 1am, and now i’m just really confused.

I asked a lot of people how being tipsy is supposed to feel like, because i was quite scared of you know, drinking something and suddenly feeling “different”. All the answers were something along the lines of: “confident, relaxed, happy and/or giggly”. So naturally, that was what i was expecting.

However, after 2 drinks (ca. 1/4 Korn (Oldesloer Mango 16%) and 3/4 Cola drank over the course of around 2 to 3 hours, if this is relevant) the only thing i felt was utter exhaustion. Like i know it makes you feel a little sleepy, since its a depressant, but what i felt was basically debilitating exhaustion. My energy was gone, i felt like shit, could not talk anymore due to just simply being too tired to do so, and all i wanted to do was just close my eyes and sleep.

Is this normal? Does this go away with more drinks, or is this just how my body reacts to alcohol? I was looking forward to the social lubricant aspect, because i’m extremely socially anxious and awkward, so i’m just really disappointed if that’s the case. I really thought it was going to be fun.

Thanks in advance for your answers, i really could not find anything like this on the internet.