Dentists are scaring... you get accustomed to hospitals, but you'll always fear dentists.
I don't know why... and I also haven't had bad experiences with them, since they were
always very professional. I guess it is because you feel harmless when your mouth is kept
open somebody has to work in it!
You'll be alright, don't worry.
And generally it isn't painful during the extraction,
it can get after the anesthetic has gone.
I experienced a bit of headache after my extractions.
Good luck