Feeling fatigued and having the spins after just a small can/glass of light beer – is it because I should’ve been building the tolerance?

So, I’m 19 and haven’t had any alcohol at all before I turned 18, which is the legal age for drinking in my country. On my birthday, naturally, I had some sparkling wine, a miserable amount, really, and it was ok. Occasionally snatched half a can of beer as a generous offer from whoever in my house was having one at the moment, but never more than that.

Then, one day I had a full glass of sparkling wine and immediately after finishing it, I started feeling spinny, sort of unpleasant, still very much in my right mind, but definitely not good enough to do any heavy thinking – I had to lay down and scroll reels cause that’s about the only thing I could manage in that state, something that wouldn’t require me to move or think. Like my brain started functioning slow and weird, but still kinda..not completely awful, just unpleasant? People I was drinking alongside made comments about how light this wine was, they “didn’t feel any effect” after drinking way more than I. I thought, well, must’ve been my anxiety. Probably made up all that in my head.

Now, yesterday I drank a full can of beer, completely convinced that the first time was just my psyche making it hard for me for no reason. And – same effect! Not entirely bad, but immediately feeling fatigued, having spins and choosing to drop in bed and partake in thoughtless scrolling cause I can’t do anything else. Thought drinking will help me chill while doing my damn uni project, as a result – feeling like a dog on tranquillisers! Can’t pick it up, my vision and brain don’t focus on the screen well enough.What is this!

I’m trying to dress it up as funny but I’m genuinely questioning if I’m intolerant. And why would that be? I am not gluten intolerant, my blood pressure is normal, weight typical for my age.

Is it just me being an idiot and being way too lawful while I should’ve been building my tolerance since I was 13? Is it just something natural I can’t change, and I’m forever doomed to being the boring one at parties? If I drink any more, will I feel way worse? I have to only wonder.