Shoulder popping. I pop it out myself?

I can pop my shoulder out of place at will, with no pain, and when my arm is pulled it also pops out of place, I've never had an injury in my shoulder and I've been able to do this for a year, 2 days ago I played a lot of basketball and used a lot of force and I felt slight pain in my shoulder, so I stopped playing for 1 hour and the pain went away. If I move my arms in a certain way(Rotator cuff exercise), the arm that has the shoulder that I can pop out of place hurts, but the other one does not. What could this mean and is there any way for me to make my shoulder not pop out of place whenever my arm is pulled or I pop it out myself? P.S. the shoulder that can pop also makes a cracking/ popping noise when I rotate my shoulder 360 degrees.