Why no progress?

In 2014 my TMS symptoms really started after a series of concussions. The main symptoms I had was a weird head pressure and a feeling on pins and needles around my head, as well as brain fog and processing issues. Then in 2016 I started having numb and tingling feet. I began searching for answers from doctors who said it was my back and then I started having lower back pain. Then in 2019, got so painful that I was having pain all over my back and my feet felt like they were being stabbed by knives. I was told I had to have back surgery and other fearful things by doctors (like not being able to walk in the future). That's when I discovered TMS. I didn't want back surgery. I had a hard time believing in TMS but begin by doing all the things I was afraid to do. Over time the back pain went away and the feet pain lessened. I begin having shifting symptoms and totally bought into the TMS. Since then, I don't restrict myself on anything and when I got new symptoms I would dismiss them and they would go away but the nerve pain in the feet always remained. I could also tell if I was getting stressed because I would get back pain again, so for me that was a good indicator to think psychologically. I could also tell that when I was going through longer stretches of happiness, my feet pain would significantly lessen. However, a couple years ago, many of the symptoms I had previously overcome have returned and I keep getting new ones. I don't really focus on them and keep just trying to live my life. However, it just seems like despite this approach that worked to reduce the symptoms isn't working and I am having all kinds of new symptoms despite my believing they are TMS. I also have this intense feeling of sadness that comes sometimes and I feel like crying but I never can.

In my psychological journey I could identify my stressors. I was married to an emotionally abusive wife (a narcissist) and was a new father and taking on a new job. When the feet symptoms started, we were investing in a house (though my subconscious was aware of the bad idea of making a further commitment in a bad marriage). I realized that during the marriage I had lost much of myself. I feel like I have done most of the psychological work. However, things have been getting worse.

What am I doing wrong, or what do I need to do to finally slay this beast?