Hey I went through the same proccess of preparing myself for surgery. I was never ready. I have only had braces and Wisdom teeth pulled and that was 30 years ago. Once I made an appointment, I stopped worrying about it. I had already done enough of worrying. I have a few friends who have already done the surgery and they kind of shamed me into it. So I know where you are coming from. All I can say is that I should of done it sooner.
After you have the surgery it is like you have been given a second chance. I am going nuts now, looking at maps, planning future rides and trips with the family. I had lost the motivation over the last couple of years. I hope your surgery goes good when you have it done.....John