I'm looking at surgery in April 2021 (T2 to S1 fusion). My pain is tolerable, but my Dr wants to do it before medical issues make it no longer an option...I'm 57, but I have osteoporosis. I don't know what your physical health is, but my Dr. told me it has as much to do with your health as it does your age. I have talked to at least one person who had the surgery in her 70's. Maybe consider a second opinion.

I find the best thing to help me with pain is regular exercise, focusing on the core. I notice immediately if I miss a week or two. I also invested in a bed that is adjustable. I sleep in the "zero gravity" setting. Basically my feet and head are elevated. It took some time getting used to sleeping primarily on my back, but it has helped significantly. The bed was pricy, but worth it.

Best of luck and I hope you find relief!