I guess there is a chance that in our "resistance" we may use the financial reason as an excuse to run away. At the moment for me, I think my weekly "fix" with my T is as important as food and water and I need to find a way of funding it as a priority - like I wouldn't say for financial reasons I can't drink water this week -I would find a way.
My life is pretty full on at the moment and for me, sometimes the pressure I experience in T is just too much and I want to quit as I can't deal with the added burden it places upon me psychologically - so like a sinking ship I look for what I can off load and therapy is the only thing I have any degree of control over right now - so for me to quit now would be a non-financial reason.
It sounds like you consider you have gained a lot and now need to practice it in real life - I wonder if there is any sort of compromise that may benefit you - for example just reducing the number of sessions at the moment? That would mean you could still check in with your T to make sure things continue to go well - good luck