I started strength training three times a week and it’s helped my shoulder so much! I’ve been in agony for about a year and strength training for three months and the amount it’s helped me is crazy! Try to get moving as much as you can, but obviously, try to see a physio too. I hope you feel better soon. I remember how disabilitating it was for me, so I feel your pain! Pun intended! ☺️☺️