Can you ask the vet if they know of any way to humanely put down Raven on an extremely limited budget?
When my stepmother was released from the hospital, she came home to my dad's dog becoming incapacitated. She was broke and in tears, it just broke my heart. I knew my dad would have wanted Lady to be put down humanely because she gave so much joy to them. I called around and found a vet who worked with me on the financial stuff, it was a huge discount and over a 50% reduction. It took me hours on the phone and a lot of begging, pleading, but I know my dad was happy on the Other Side.
Hugs to you, DeVon.