He is being very unethical pressuring you into something you dont want to do and cant afford to do it. I don't like the sound of this psychologist at all. I would report him to his accrediting body. He is not complying with more than one ethical codes and the one that really sticks out is beneficence. How is that helping you by demanding things you cannot afford nor wish to do.
I am also curious as to what this therapy is that he is suggesting and does he have some sort of business arrangement with whoever is running it.