My issue

I've lived with chronic pain for the last 7 years. I broke my neck in a car accident when I was 16, had to have a C5-C6 fusion. To help with the healing the surgeon also implanted a donor bone graph which within 6 months of recovery, began to deteroriate and couldn't figure out why. In the next 2 years after that, I was in a total of 6 car accidents.(which i was not the driver). With the last car accident, i noticed i was having severe upper back pain. I went back to my doctor, got some tests done, and found out I have Spondylosis, which in other terms is "Spinal Osteo-Arthritis". At 18 I had the spine of a 40 year old and when it was checked 2 years ago, it aged 10 more years. The pain that started strictly in my upper back, eventually has spread to my entire spine, and also with severe muscle damage and pain. My doctor told me that I'll be lucky if I'm still walking when I'm older, which I'm not holding to heart, but have noticed new symptoms where I'll be walking and my legs feel as though there going to give out from under me. And I have tried everything, I've done Cortizone Shots, Message Therapy, Acupuncture, Chiropractor(which was a mistake), Pain meds, physical therapy. Nothing seems to help it. My doctor gave me two options as of now...either get back on the pain meds(which i really don't want to do because they are addictive and what will I do when I'm older and really need them?) Or begin to do fusions on my back to make it stronger, which I don't want to do either, My dad had a lower back fusion done and it destroyed his life, he was on the max of oxycotin and could barely walk with a cane. I don't want that kind of life, it's already bad enough....I guess I'm here to find new sollutions, something that i haven't done yet. Just holding on to hope, i know what i have isn't curable, but there has to be something out there that can work for me beside pain meds and surgury. Because this pain is beginning to take it's toll on my mental health, I'm depressed, stressed out, angry, my anxiety has hit it's peek.