I had a shoulder arthroscopy and i didn't complete physical therapy. are there exercises i can do to make it better?

What Procedure?: It would be very helpful to know what procedures and repairs were performed in order to provide you a meaningful answer.

Yes: When surgery was done and what procedures were performed would determine the type of exercises to do. Typically 4-6 weeks i immobilization with simple passive exercises followed by progression to active assisted, and the active motion. After 10-12 weeks strengthening can commence. This is based on rotator cuff repair.