I am in the same boat you are. I would say don't try hardcore to overcome it. It's like pulling tighter on a chinese finger trap, it won't get you anywhere. I saw a video from a disabled child who said, "I don't concentrate on the things I can't do, I concentrate on the things I can do." That really has helped me
Stage one of any healing process is acceptance as well. We just have to accept we have a chronic pain condition, this is our lot in life.
This is only my opinion, but I think journaling is best for people who can't face their emotions and tend to repress them. If you are an emotional person you can write a whole autobiography and it probably won't do any good.
I've been working on TMS for about 4 years too, so I'm where you are at. It's like, okay I've learned my lesson already, can we move on?
So, obviously our only problem in life isn't pain, that's the symptom. So we have to figure out, what is the cause, the problem we are dealing with? This is where journaling can really come into play when you aren't sure.
But once you know it, what is the problem, the root of your pain, you can then take those slow and steady steps towards recovery. And again, I really think the first stage of recovery is acceptance. there's some problems we just can't fix, but we can accept them though, and then we can learn how to deal with them and see what the solution is. If that disabled child whose problem is he can't walk, continues to try and walk, it will only frustrate himself because that problem cant be solved. But, he can focus on what he can do and not let what he can't do bother him as much.