I had some shoulder work done about 10 years ago. L rotator cuff blown out and ligament from the humerus torn off the clavicle. Just muscle holding it place. Still got two staples tacking that ligament to my collarbone. Fun story that one
Anyway, just do what your physical therapist says, give it 100%, and you'll be back in no time. I was amazed at how quickly I got strength and range of motion back.