oooo shittay. don't worry tho dude, you won't feel a thing till after. It will hurt after though, and u will bleed. sorry...
On the good side...thats why we have pain meds. in my case what they gave me wasn't strong enough, and i had to go back and ask for stronger stuff. It at least knocked me out.
Mine was an exceptional case...i had to get braces and there were 4 additional normal teeth that they wanted out before they put my braces on...so i had 4 wisdom and 4 normal taken out all at the same time!!! And I lived! lol
Only part that sucks is i couldn't smoke for a couple days, cause you can get whats called 'dry socket'...its where air gets into the holes they stitched, where your teeth came out.
That shit hurts...so lay off the smoke is my advice. And by all means don't worry, you'll be fine!!