The first one of mine I had pulled I said the same thing because it went so fast... "is it done already?"
Take the gauze out soon and let it bleed freely so it clots up good. Chomping on the gauze all day until it's totally done bleeding can pull out the clot when you take it out finally or encourage it to not clot well at all so it just keeps bleeding into the gauze. I think that's how I got my two dry sockets - biting on the gauze for hours and hours until it was totally done bleeding so it never formed a good clot or I pulled it out when I finally took the gauze out. Don't chew food on that side for today and tonight at least unless it's soft foods for the same reason.
The two dry sockets I got were both in canine teeth with the longggggg roots, and I bit on the gauze until they were done bleeding - a good 10 hours or more. For today and tonight if you get through fine with no pain then you should be ok for not getting a dry socket as long as you don't do any kind of sucking like smoking or drinking through a straw for several days. It's that sucking through your mouth that can pull out the clot after it forms, but leaving off the gauze after a few hours to make sure that one forms and doesn't get pulled out when you take the gauze out or it just never forms one to begin with because of bleeding everything into the gauze is probably more important.
The last teeth I had pulled I had to get four pulled in one session for my dentures. I had the surgeon put in stitches so I wouldn't get a dry socket. I don't know why that isn't standard for having a tooth pulled anyway. It should be. I don't think they personal know how horribly agonizing a dry socket is. Just putting in one good stitch to close the hole in the gum up will keep you from getting a dry socket, and after getting a dry socket twice before I'd pay ANYTHING for that one stitch.
Glad you got through it fine, and you won't be so scared if you ever have to have it done again.
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