Thankyou for approaching DoctorSpring.com
I have read your details with diligence and understand you concern.
It looks like you are having severe pain at your shoulder.
At this stage of your age with such features, I would suggest that you get help from a physiotherapist He will act by gradually mobilizing your shoulder,this will be supported by some machines and heat therapies.Although this may take a long time but this will help in your gradual recovery.
At this age I am not in favor of surgery as this may aggravate your problem more.
Like I said physiotherapy will be good for you. But I wouldn't advise anything to do with surgery,
I hope this has helped. Please feel free to follow up with further queries and I will guide you.