I had to get one of my teeth pulled out, I was probably as nervous as you are. He numbed my gum with a needle, the first one kinda pricked but the rest you couldn't feel at all. I had to ask my dentist if he was actually pulling them out because I couldn't feel a thing, there is absolutely no pain involved it just feels like the ground is shaking and you are wobbling a bit. It bleeds a lot but your gums will still be numb for about 20 - 40 mins. I actually bit my lip and had not noticed or felt that it was bleeding because you cannot feel it. Just keep a tissue because as disgusting as it sounds you drool and bleed a lot after it's happened.