I had a total hip replacement 2+ years ago. I was so terrified but I chose a top notch surgeon at one of the best hospitials in the country. I have been fortunate to live close to NYC and Boston. Anyway, I had total faith in my doctor. When I was getting hooked up to an IV by the anesthesiologist he told me that once he did not we were on our way to the operating room. A few minutes later I was being wheeled down many corridors and I was yelling BEEP BEEP the whole way. Whatever he gave me worked. Of course once I got into the ER there was, I am sure, more drugs to be had but I didn't remember a thing. Cannot even imagine how I was released the same day or how we got home after huband got lost TWO times. You will be OK. It's very very scary.