If you are not an active individual then you might be able to live your life without the use of your supraspinatus. But, since evey individual is an athlete you should at least visit another orthopedic surgeon for a second opinion and find out about surgical options. In the mean time, physiotherapy and manual work will reduce the amount of scar tissue build up allowing a better result with surgery and quicker rehabilitation. But why you waited 8 months after the initial diagnosis I'm not sure of.

Good luck