[F20] Tried soju for the first time, only got dizzy and a headache. Is this what being drunk is?

So, I (F20, 5’5″ (164 cm)/ 112 lbs (51 kg)) just had my birthday and decided it was time to finally try alcohol. I went with soju since it seems pretty popular.

First attempt: I had one bottle. The only thing I felt was a pretty bad dizzy spell. Like, I was struggling to walk straight. The next morning, I woke up with a killer headache. Not fun.

Second attempt a few days later: I thought maybe I didn’t drink enough, so I went for one and half bottles this time. Same exact result. Super dizzy, massive headache, and I just ended up passing out. Woke up the next day feeling like crap again.

I keep hearing people talk about being “drunk,” “tipsy,” or “buzzed,” but all I’m getting is the dizzy/headache combo. I have no idea what the “fun” part of drinking is supposed to feel like.

Am I doing something wrong? Or am I just drinking too little to get past the bad part?