Good luck, Steve. I've broken both my shoulders. The left years ago on a motorcycle. The right just a few years ago (I'll be 62 next month) falling on ice. Orthopedist immobilized right arm for a month and I was able to avoid surgery. On the first visit to the orthopedist he asked what had happened to my left shoulder noting the scar from my neck to half way down my upper arm, "Hmm, we don't fix those that way any more!"

Use the sling and take it easy on the arm. It could make a big difference. Good luck, again.