Does your job have benefits? Do you have health insurance? Can you get another psychologist? Effexor comes in a generic, it seems that there should be a way that you could work it out.
I am so sorry it looks bleak right now, Biscuit Tin. But, something will work out. Effexor is a good medicine and there also is the second generation of it called Pristiq. Pristiq is actually more desireable as it has not as many side effects.
Just because you are working now shouldn't mean you don't have as many options. Hang in there.