Oh, @shann, I'm so sorry to hear that, both that the wound has opened, and that you're struggling financially.
I do think you're right. There is a certain demographic that is often forgotten. Single (female or male) and in those middle years. I was lucky enough to be well enough to work through my treatment, a combination of reduced hours, and a supportive workplace. I also had the support, physical & financial when needed, of my extended family, including my aging parents. At this point in time I haven't had to access any sort of government or other financial support, so I can't make any useful suggestions.
Take care