I injured my knee playing sports in the 6th grade and now my knee pops out of place it pops right back but the pain is unbearable what should I do?

See Ortho or Sports. Not sure what you mean by pops out of place, whether it is the knee or the knee cap but either case may be the result of a tear or other laxity. It needs to be evaluated to determine the cause. (because of the pain, evaluate sooner rather than later.).