I had the surgery a little over a year ago. I had too been through all the other opitions and this was the last thing that they could think of doing. Like you I was scared because I did not know what to expect. But my surgery went very well and I am very thankfull that I had it done. When I woke up from it my chest felt tight and that was really all for a while. I felt pretty good all and all but just very very tired. As the rest of the day went on I spent it in the hospital of course and realized somethings that were not easy to do.
Moving my arm was hard for me so I kept it at my side for a while to be honest. Coughing was not easy because your chest muscle were messed with for the surgery and laughing is not a good idea either. In the hospital I got sick for medicine and that caused me to vomit and that hurt the worst. I really did not have much pain at all to be honest. I had sometimes that were bad but I am the person that likes to see what I can do. I was back in the water swimming about a week after surgery. So I had a good surgery and my only suggestion is just try to take it easy and listen to your body. Also finding a way to sleep might be diffucult as well. I slept on my back because it was easiest. Eventually I slept on my stomach but kept a pillow under my shoulder so that it was softer on the side of my body. Then eventually I was able to sleep on my left side and then my right side (which is the side that I had surgery). I think that you will be fine! After about 2 days it is all up hill!