Another thing that’s helps me is positive affirmations. Twenty minutes or a half hour in the morning, changing your thinking for hours afterwards. You will feel your brain resolving your inner thoughts positively instead of negatively. And the more you do it the easier it gets, until it becomes just how you think. The more time we can spend thinking positively the more everything just sort of falls into place, or at least our reactions to things.
Lawyer here. Bud, your shoulder will never recover fully from this. Shoulders are terrible joints. The bones are just sort of there, not really attached to the rest of your skeleto. Talk with your Ortho about the probability that you will need a total shoulder replacement at some point in your life because of not just the broken bone and the healing processes to come, but also the damage to the surrounding soft tissue.
Plus the ambulance ride, hospital visit, and ensuing treatment, is going to take up time and money and it should not be yours. As you noted, it’s really just insurance paperwork, at the end of the day. Call a good lawyer.