Please tell me I'm right on this

It’s basically soda with no flavor, I don’t like it.

I dislike all carbonated/fizzy drinks actually

Hey! That's good for you! The way these drinks are packed with sugar these days you won't have to worry about speedrunning diabetes.

YES!

sparkling water tastes like toilet

you're right otherwise.

Seltzer is ok. The polar brand.

If you mix it with something else it’s really good.

You're right on this

some is decent.
Like if it has a strong flavor.

With me, I get headaches whenever I try sparkling water. Like, actual headaches.

Well, at least you're not drinking straight carbonated water...
basically the same thing but with only the taste of water.

The first time I tried carbonated water was the last time.

interesting.
I am not surprised

What the hell sparkling water is the best

Ay chill out. The majority begs to differ.

Depends on the sparkling water...
Some are good, some I'll still drink anyway.