Psychological aspect of recovery from long term injury

Sorry if this question has been dealt with, the problem is i don't even know where to begin regarding searching for information, as far as what terms are used etc.

So, my problem is that I had very bad foot pain for a long time while doing a physically demanding job that kept me on my feet bearing weight despite the pain.

The pain in my foot is much better now but i feel like I have adapted to being in pain by moving as much weight off my foot as possible. I lean to the other side and my hips are at an angle and so on.

I feel I have reached a point where it is something mental that is blocking my progress here. Much as I want to put weight on the foot, its like I am programmed not to. Since we walk a lot and it is something of a subconscious activity, I struggle to go around trying to correct this constantly as a conscious effort. Driving myself a bit crazy with this to be honest. My posture is really messed up by this, as i mentioned my hips and therefore lower back zigzag this way and that and then my neck is really tense on one side as well.

I wondered if there is an approach that exists that would treat this. I remember reading an interview with some musician who had damaged his hand and they were making him ram his fingers into sand and other such stuff to get him to use his hand and confront the pain, I have no idea what this would be called or even if it makes any sense lol. So, again, is there a type of therapy that addresses the mental side of convincing your body to work the way it used to?

Thanks in advance