It is human nature to be afraid of such life altering surgery. While I wasn't afraid of the surgery, I was still very nervous as it was the first time that I had ever had surgery of any kind. Lets face it, this is "Major Surgery", and like other major surgeries there are always inherent risks involved. I was personally very nervous about being under General Anesthetic so I opted to have my SRS done by epidural, and I was awake the whole time during my surgery.
The best way to combat the fear of the surgery is to look past it and concentrate on how your life will be once it's completed. I myself find it had to comprehend why someone would transition and not want the surgery. This topic has been discussed on the boards may times, but this is just my opinion and the expression of it is not meant as an invitation to other to hijack the topic of this thread.
Steph