Can anyone give me advise on lowering my pain level from surgeries naturally,by meditation techniques?

I had total neck,knee,shoulder surgeries done over the past 7yrs with very little breaks from major pain. My latest op was my knee replacement done last Sept. I’m really stressed out from all these ops. can’t sleep good anymore,nerves are on edge all the time. Does anyone have a suggestion to esae my stress levels somewhat? Any advise would be very helpful at this point.
I would also like to add that I have developed Diabetes Beginning stages of it from so many surgeries in such a short time