What exercises can rebuild shoulder muscles and ligaments?

Hello doctor,

I am 26 years old, and I have a question concerning my right shoulder. When I was 19, I underwent arthroscopic surgery to address a labral tear in my right shoulder. Since then, I have experienced multiple subluxations and two major dislocations. While the initial physical therapy after surgery went well and allowed me to return to sports, my shoulder dislocated again during a volleyball game two years back, and it has not been the same since. I do not have health insurance, and I am reluctant to undergo another surgery due to the risk of reduced range of motion. I aim to strengthen my shoulder to participate in a competition next year. I wonder if this is a realistic goal, and if so, what exercises I can do to rebuild the muscles and ligaments in my shoulder. The history of my medical conditions includes chronic right shoulder pain, which has been recently worsening, and the inability to hold my hand out in front of me for more than a minute due to a burning sensation. I have had two MRIs with dye injected into the shoulder joint. I would greatly appreciate any advice or guidance on proceeding with the shoulder strengthening exercises and whether achieving my goal is feasible.

Thank you.