Hi Fireman,
It is natural that you should be scared and have anxieties, you are about to have surgery. But you have to look at the bigger picture you are going through this process so that you can be a healthy weight, and hopefully not suffer from any of the ailments that come with being overweight, which in the worse case can be fatal.
I had surgery on 6 Feb this year, and trust me I was petrified, I considered cancelling, but my best friend said to me do I want to be here for my children, who are 22 and 12 and my Grandchildren who I don't even have yet. Yes I do, I owe it to them and most of all myself. Only you can take control of your weight and your health and by what you have said you are doing a great job.
Everyone is different, but having had the surgery I can say it sounds worse than it is, I had very little pain and today five weeks out I am fine totally back to normal, apart from the fact I can only eat very small portions of food and it's great, I have lost 35lbs since my two week pre op diet and today and I feel fantastic.
I'm not gonna say you will be fine, because I don't know, but I think you will be, life is about taking risks, and this risk is so worth it, this surgery is one of the safest you can have. Feel the fear but do it anyway. Good luck!!! And let me know how you get on.
Shyv