I had mine done some time ago. Relax! It was extremely easy. I went to the doctor, laid down, spread my legs and asked him if I could watch. He said that was unusual, but since I was paying for it, I could. Actually it was a rather simple procedure of making a couple of cuts, pulling the tube out enough to tie in two places, and then cut between the ties. A couple of secures and I was finished. That was on a Friday afternoon. My wife is a nurse and knew exactly what to expect. On Saturday morning I woke up with a hard on, per usual! My wife masturbated me extremely slow so as not to giggle my balls. I had an extremely long and very deep orgasm. That night we had vaginal sex with absolutely not problem, although I will admit, I didn't push my balls up against her like I usually do. The next day, sex as usual. I went back to the doctor a few days later and masturbated into a small cup. He immediately looked at my "shot" under a microscope and said, "No swimmers!!!". He did ask that for the next week that I continue to use a condom, along with my wife's birth control, as he didn't want any residual swimmers lurking around.
Frankly, it is the best thing I have done to improve our sex life. It is absolutely great to have immediate sex and not worry about any birth control (putting on a condom, etc.). And, naturally, it feels so much better for the both of us to have "skin to skin". I have found the operation is really worth it. Hope you feel the same way.