Good to hear from you
Sorry that you are having a bit of a time with it all.
Have you got a recliner you could sleep in? Only ask becasue I am a front sleeper and had an op a few years ago and I had to 'sleep' on my back, although I use the term sleep very lightly cause I wasn't getting too much of it and being propped with pillows didn't do me too many favours but once I moved onto the recliner I was out like a light every night.
You are right about not thinking about knee surgery right now, put all your efforts into getting well this time around, tomorrow(or next spring ) can wait!
Hope things start to improve soon
((((((hugs)))))))