I tore both of mine when I still worked for a living. 1st one in 2016 had me off work for maybe 9 months, right arm. 2nd one left arm, plus he relocated the top of my bicep, but I had that operation after I retired, so I can't remember how long it took for PT. PT is very important after the operation. And, both operations hurt like the Blazes Below after the nerve block wore off. You WILL need meds if you're not Rambo for a couple few weeks, but if you have a therapist like I had both times, the pain is secondary on your mind. Both of my shoulders are stronger than before they got torn, really. Stay away from pipe wrenches longer than 14". Seriously, do what they tell you and if the PT hurts, either get more pain meds or better yet, they will know and ease up. Good luck and practice shooting, and other basic things, with the other hand. Same shoulder twice? If you were closer to Pittsburgh I can recommend my doctor's and his associates' practice. The one in Fox Chapel is great.
Again, I'm sorry you have to go through this again, and good luck and God Bless.