Hi Trace. Sorry you're feeling so bad. Don't ever worry about having to vent. We all feel the same way from time to time.
I'm sure 6 weeks seems like forever, when you were getting your hopes up about finally getting some treatment that might work for you. Whenever we start a new medicine, it's the same thing, you know? We think "Maybe this one will end the pain." and then you wait and wait, and sometimes have to try something else, and play that waiting game again.
I know finances are a real problem for you, Trace. Do you have any discount drug programs in Australia? Is it possible to set up a monthly payment plan with a pharmacy so you can get some pills that might help to stop the really bad migraines?
What about your doctor's office? Here in the United States, sales people from drug companies come to the doctors' offices regularly and leave samples of prescriptions that the drug companies want the doctors to prescribe. The doctors can give those samples to their patients for free. My doctor does this for me when I run out before my next shipment arrives. (I get my meds from a mail order pharmacy because my insurance gives a much lower rate than when I use the local drug store.)
It must be especially difficult to get a bad migraine and not be able to lie down and really relax for an hour or so, because you have two little girls. I can just imagine all the fun they're having. Running around, giggling and squealing with laughter. My "little girl" just graduated from high school in June! Do you have a friend, neighbor, relative, who could come over for a couple of hours on your bad migraine days? Anyone who could help while you lie down with a cold cloth over your eyes in a nice dark room?
I'd offer, but it would take me too long to get there 
Besides, I'd probably have a migraine, too.
You wrote your letter when it was 11:15pm in Australia. It posted here at 8:15am on 7/13. Keep writing, Trace. It helps.
~~Pegasis