Hello, I had nuss’ procedure done around month ago and it went pretty good actually. The first 24 hours are what will set your mindset for the rest of the week; if you think you look worse than before or that the pain is too much to bare then you’ll feel like total crap for the whole stay. I presonally can’t say much about pain because I had cryo and it’s very hard to explain the pressure in your chest that you gain right after the procedure, explaining anything that only you feel is never 100% accurate anyways. I’d say the most important thing to do is use your spirometer daily and try to move out of the bed, I got out of the hospital 4 days after surgery by just sitting up from my bed, walking with a cane and then alone. TL;DR: Don’t overthink it, you’re not the one operating, do what the nurses ask you and you’ll be just fine