I don't know the programs in your area specifically, but I would suggest trying the Department of Mental Health. (In some states, it's part of the Department of Health or something similar--if you google "department of mental health in [your state]," you should be able to find it.) They offer treatment to people who can't otherwise afford it. You might also qualify for Medicaid if you're low-income, and that might give you a winder choice of therapists than DMH would.

It sucks that you were refused help when you needed it. That's not right. If you're ever in that situation again, you might try calling a suicide hotline and explaining the situation--they'd probably be able to help you in an emergency situation.