Fish needs surgery and testing

Hi. I hate doing this. Really really hate it. But I promised this incredible dog I would do anything for him, always, and I need help keeping my promise. I’m currently unemployed due to a long time struggle with my mental health, and actively trying to get out of my situation. Money is nonexistent. My bank account is empty. I’m selling my things to pay for dog food. And now, this beautiful Fish of mine has developed a lump on his paw. The veterinarian said it absolutely has to come off, urgently, literally NEXT WEEK, because it needs thorough testing to know what we’re dealing with, and to make sure it hasn’t spread elsewhere. I don’t know what else to do. Please, if you can, help me keep my promise to the dog who saves my life

on a regular basis. He deserves it. The bill is 1102.83. I’m selling what I can to pay as much of it as possible. But I need help.