One reason I think many of us are overweight these days is because we aren't "doing" enough that we're passionate about. If one is in the "zone" with one's work, eating becomes almost a chore. I remember back in the 1950s, how "scheduled" my life was and how part of that was eating 3 meals a day; there weren't distractions where there were opportunities to eat; I was in school, outside playing/exercising, working on homework, etc.
Now we can do whatever we want and don't have much structure; even at work, you can eat; school does not just have "take it or leave it" in the cafeteria but choices of what to take or leave

and, as we said in the training business, "beginners don't need choices". Give a child the choice between milk or water and soda when he hasn't been "trained" in eating healthy and he'll chose the soda. New, interesting fruit or same old apple or banana? :-)
I think that is what I would try for my "working on it between sessions" if I were you. Can you train yourself to not think of therapy, not "prepare" yourself between sessions?

Can you get so into "living" instead of analyzing living that you are forced to be spontaneous when you get to your session?