How do you deal with the physical pain? My back is destroyed

I'm 35 and my back is already shot. Chronic pain, can't sleep, seeing a chiropractor weekly. My hygienist is in worse shape and she's only 28. I know ergonomics matter but when you're running behind and trying to see 20 patients a day, perfect posture goes out the window. What actually helps? Exercises? Equipment? I'm desperate. I can't imagine doing this for 20 more years if I'm already in this much pain.