Don't try to work harder! Don't even go in that direction.
Instead, do the inventory on those three questions. Let that give you insight. Once you have some of that, I suggest a new approach. This is because I doubt you will remember what to do with the original procedure or know how to take it to its conclusion.
This time, do some prep work—breathing, etc— and BE the part of you that hurts (Yes, I know that this is difficult, but it's a source of energy right now.) and let your desire to be out of pain draw you into the work. Just let go to it. Let it pull you into a dialog.
Then you can alternately be both the part that hurts and the conscious mind, you as you know yourself to be. Take turns and speak in both voices. You can even switch chairs and take on each persona. Have fun with it. Experiment and explore role playing. Take on the role of every part that talks to you. You want to continue what is working, stop what is not working, and invent, import (learn), or imagine what is missing suddenly being there.
The goal is the same as before: Find out what you are getting from this drawn out pattern, and, if you agree that you need it, find other ways to get it, ways that don't include suffering over this relationship any longer.
Tao