Help Xenia with her surgery & Cancer treatment

Help Xenia get her Cancer treatment & surgery, she URGENTLY! needs help

Hello, this is my baby Xenia she picked me since she was 1 month old I knew I would love her to dead since I saw her little stripe in her head, she is now 11 years old, gave me three gorgeous pups that are now adults, I noticed that she had a small cyst like growing in her front leg, and my mistake was taking her to a "friend" vet that just by seeing that told me "we got to get rid of it" with out doing any biopsy, when they removed the mass after 15 days it started to multiply and more aggressively , so they did another surgery, but nothing changed they only ripped her skin and kept growing, those two surgeries where expensive, and did nothing a fiend recommend me another cuban vet an started a treatment, he did a biopsy and its a level 4 grade 2 tumor, (I forgot the medical word) and she got another surgery and she got weak, she needs to go everyday to get her treatment that has to get needles in her little veins and by doing this some have being rupture and they have to do it in another vein, this has got me with out money and we haven´t finished and every day that goes by is more and more money, vets don´t do it because they like their jobs they are in it for the money solely, as I have other dogs I also have to look after them, right now the money I make it helps with the rent and basics in house, the last resort for Xenia is also amputating her leg and see if the tumors don't spread, you can see how the tumor just exploded in her leg, and how invasive is with all the tumors in the other photos, please help her we will be thankful for life. god bless