I have a few years on you, since I have 61 years experience. I had a frozen shoulder in the 90s. Didn’t get shots or any other care for it from my doctor, but discovered a home treatment that was effective eventually. I put my hand as far up the wall as I could reach, then leaned down on it until it got slightly more painful. 2 or 3 times a day.
I said eventually because it took about 2 years, but diminished it throughout that time.
BTW, I just stopped using my insulin pump 3 days ago, since I now inhale my insulin at meals. Afrezza is an amazing development, it gets insulin directly into the bloodstream within a minute and effective in 8 to 12 minutes. Also found it interesting that it was invented by the man the invented the MiniMed insulin pump in 1979 because he found that all pumps didn’t work as well as he knew they must, because the faster insulin analogs (Humalog and Novolog) are still too slow to equal digestive rates. So at age 88 he started working on inhalable insulin.
Of course you do need good lungs, and be willing to take 1 insulin pen shot of Tresiba per day for basal use, but that leads to a LOT less scarring.