Wow, such a hard situation!
So if the meds are working, I'd try and stay on them and try to get some financial aid. But you said the meds aren't really working right? Then I don't know. Maybe ask your psychiatrist about it, what they're thoughts are. I feel so bad when I hear about people having to try all these different meds and nothing working! I'm so grateful that zoloft and tenex seem a good combination for me for now. Please keep us updated.