Shoulder replacement. Live alone w/no help. How to prepare and cope?

I am 80 and looking at shoulder replacement, anatomical or reverse stil TBD. I am otherwise mostly healthy but live alone in a single story home, but without help. Doc intends to keep me one night inpatient. Do you have any advice for how I might prepare beforehand - any and every thing. And also, please, how to cope later. Of course it is my dominant arm. I have gone so far as to have a bidet installed and gotten things off top shelves. I have a recliner and an electric toothbrush. What/how did you eat - even open bottles of milk? Shower? Dress? Use the computer? And absolutely anything else that I'm not thinking of here. Yes, I am worried....can you tell? Thank you so much. You are a blessing.