Hi there!
I know what you are going through. I went through a severe back episode about 1,5 years ago. Lower back was killing me and pressing on the area was excruciating. I went to every type of doctor, physio, chiro etc. They had different ideas, said I had unbalanced hips, needed surgery etc. Of course, they were all wrong. And the more I met with them the worse I felt.
I started reading Sarno and researched the success rate of back surgery etc. I live in Sweden and we are commonly known for having a quite good health care system (at least before privatization of everything) but when looking at back surgery data, the success rate is just horrific. Almost 50% of people still have pain 2 years after surgery. I also realized that 80% of all back surgeries are conducted by private surgeons, owned by international investment firms. Putting this information together it became quite clear to me that back pain is highly profitable and it's prevalence in Swedish discourse is due to economic interest. I know I sound like a socialist here, but trust me, this is so fucked up.
Anyway, back to the issue at hand. I started focusing finding inner peace. I started meditating and just smiling as much as I could, sounds silly but it really worked. I tried meeting new friends, started playing disc golf every weekend and never said no to anything. I know that I'm privileged to be able to do so. I also switched jobs. Used to work as a management consultant, where I felt no purpose. Money was the only driving force for me and my colleges. Just horrendously hollow. I started working within health care, specifically cancer care. All of a sudden I felt that me going to work meant something. Sitting on the bus to work was not only me being part of the rat race. Furthermore, I started lifting again. Heavy as hell. Deadlifts and squats. A bit painful at first but it went away. In the beginning I was thinking that: "okey, let's say that lifting this heavy my back will get even worse. But if it does, it will lead to surgery which the doctors already say that I need". As such, the outcome would be the same and I was able to get rid of my fears. I also started reading a lot about the benefits of weight training. And I'll tell you, going to the gym and lifting heavy is the best thing you can to for your health, bones strength, resilience to injury when you get older etc.
To finish off, I had a follow-up MRI 3 months ago. Still two big herniation in my lower back, but no pain.
BR John