My beautiful fur baby has cancer

I took my beautiful fur baby Pixie to the vets recently, she was lethargic, off her food, just not her usual bubbly self. After multiple tests she was diagnosed with Lymphoma, I am heart broken when I left my abusive ex she was all I took with me, I cannot have children & she is my world, my everything. I have pet insurance but it is very basic, it does not cover this, it was the only pet insurance I could afford. The vet said it’s treatable, but the quicker we start the better chance she has. I cannot afford the treatment on my own, I would sell a kidney, my soul if I could, but I can’t so I am begging on my knees please help me. Please save Pixie xxxx