Options for disabling OA at 26 years old

I am a very active former soccer player with increasingly disabling OA. I have had 2 abrasion arthroplasty surgeries within the last 3 years. I currently am looking for any new options. My knee in the past 2 years has begun downward spiral of degeneration and deformation. Should I limit my activity or should I stay as active as possible within the limits of my pain. Impact currently seems to be out of the question. Also, insurance would be hard for me to come by. Does anyone know of anyone looking for candidates such as myself for trial purposes. Thanks, Pete Allen