Yoda's advice looks good to me. Also, two stories, for comparison:

1. A high school friend had her wisdom teeth out; I don't know anything about the actual procedure. She had considerable swelling afterwards -- "Looked like a pumpkin," as she put it. I remember her just about living on aspirin gum for a few days afterwards. I made a note to myself to avoid having mine out if at all possible; no way was I looking forward to going through that.

2. Maybe 15 years later I did have my wisdom teeth out. I arranged to take a week of vacation at the same time so that I wouldn't have to worry about being ready to come back to work. My dentist gave me novocain and nitrous oxide; the actual procedure didn't hurt a bit. He emphasized the post-op care: sleep sitting up the first night and use ice packs for the first several hours, so many minutes on, so many off. I had no swelling. He gave me a scrip for painkillers but I never needed them. Later I told him story #1 and asked why it hadn't been anything like that for me. "Good post-op care," he told me.

Good luck, Rainbowzz!

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(Edited to add):
For all the dental procedures I've ever had, what's made the most difference in how I felt about them has been how well I trusted that particular dentist.