My shoulders have been popping out of place then back in during stunts at cheer practice more and more often. how do i stop it from getting worse?

Unstable joint: It sounds like you may have a shoulder that is trying to dislocate.You need to see an ortho doc and demonstrate.

Shoulder Specialist: You are probably very flexible and with time have stretched out the static stabilizers of your shoulders resulting in shoulder instability. Depending on the severity and findings when you see a shoulder specialist, a well designed scapular stabilization program may help manage your symptoms... Learn more here: http://www.Theshouldercenter.Com/unstable-shoulder.Htm.