Do you have some pt bands at home and also a two pound dumbbell? Can really start improving strength for your small isolator muscles with just those doesn’t take much to build strength in the shoulder. Don’t overlook those large supporting muscles I mentioned earlier. Rebuilding your strength is obviously important but make sure to be working on your range of motion I think this is often overlooked or something most become complacent with trying to improve beyond what they think is the new norm. Pain is often the biggest culprit of not regaining your range of motion. Obviously every patient is different and can change how to approach rehab like age and condition before the injury. I was rehabbing my shoulders after major injuries but I was also in my early and late 20s and was in phenomenal physical condition being a collegiate ice hockey player so I was able to and also told to work through the pain to get stronger and regain range of motion. If I had the same surgery now at 44 it would probably be a drastically different approach. My shoulders are still something I have to pay attention to today. Gentle joint but I’m thinking you may have to battle through a little to get it back up and running. Work it then ice ice oh ya and some more ice lol.