Surfing with torn rotator's cuff

So apparently I have a torn rotator's cuff. It's a hairline tear, but it sucks! My right shoulder pops when I raise my arm and make paddling more difficult. I'm already a beginner as I am but not being able to paddle for a long period of time makes it difficult. I'm planning to have surgery on my shoulder, but I'm going to do it after the summer. Does anyone else have shoulder issues? How do you deal with it and surfing? How do you strengthen your shoulder?