First Experience Tonight - I think I screwed something up.

I worried I did it incorrectly and I don't want to keep trying and waste it. I did a few hits, but mainly it just burned my throat. One time I did feel really light. But, I had a hard time holding it in, but I tried. Beyond feeling light the first time, nothing really happened, so I probably screwed it up. I do feel a little woozy right now but mainly my throat feels a bit hot and that's about it.