What occurs if i pulled my own tooth?

Hard to say: Don't know which tooth you're talking about. But to attempt to perform a medical procedure on yourself that takes everyone else 8+ years of schooling and practice is not prudent. The complications include a fractured tooth, infection, swelling, nerve damage, bleeding profusely, damage to other teeth, etc. Save the diy projects for the home. You will pay the surgeon more to correct your mistake.

Depends: How brave are you and how quickly can you admit a mistake? If the tooth was very loose due to severe gum disease, it may come out quite easily, but you may damage adjacent teeth or your soft tissues (gums, cheeks, tongue, floor of the mouth, etc) you could develop uncontrolled bleeding and require a hospital visit. Please leave dentistry to the "pros".

Hard to say...: If you did it correctly, you'd be numb, in no discomfort, remove the entire tooth without leaving any pieces behind, not damage any other teeth, tissue, or nerves, avoid an abnormal and painful healing period, and have a rather routine experience. That's what would happen if you pulled your own tooth correctly. Otherwise, go to a dentist.