Yeah Psychologists can be expensive, Psychiatrists even more! I guess it also depends on who you see and where, and some other things like how often, and so forth.
Do you have a Mental Health Care Plan on Medicare or anything similar? I understand how expensive it is, trust me. But I guess they have to make their money somehow. Mind you your mental health is more important than them making money, as much as I understand that they have to get paid aswell.
Perhaps you could try talking to the therapist and/or a GP about it? I'm not too sure. Or maybe looking to see if there's any qualified mental health professionals who specialise in what you're dealing with and see if they're cheaper and discuss the payment with them?
I'm sorry I can't be of much help and give more advice, but I care and I'll try my best to support you and offer suggestions and advice.
I hope you can figure it out and you don't pay too much. Good luck with it all, and I hope you find a therapist who you like. You're also welcome on these forums anytime, any day, like everyone on here.
Best of luck with everything, I'm thinking of you. I'm here if you need. Take care.