Hi! Thanks for sharing your story and reaching out for help- there is hope! I’m wondering if the PTs or Chiros you’ve seen performed any soft tissue therapy on the labrum or rotator cuff muscles.. the tissues in shoulder joint are notorious for guarding an injury and as a result, weakness, pain, and adhesions develop. Trigger point therapy, Rolfing, & Active Release Techniques are very helpful in getting the joints and muscles back to healthy ranges of motion.. I’d recommend seeking out a provider of one of those soft tissue therapy techniques. I’ve had the privilege of helping a lot of shoulders in my ART practice- there is definitely hope! I hope this helps!