I agree that recognizing that what you are doing moment by moment is a good first step. You recognize that you stop and are blocked. You notice at what point you stop. I also say trust your t and if you can stay with something painful or difficult just for a minute before you stop. Or go back to the point you stopped and stay with it for a minute. After that something else may continue to open up and you may have a moment when you might feel its OK to share just one more thing.
I like what Echoes said about continuing to notice the push/pull approach/retreat. That there is so much about this to explore and is something that keeps coming up as it is being worked through.
Youre in a good place talking about it Del...