Save Mikasa from Lilly Poisoning

This is Mikasa, and she had to go into the emergency vet at 10 p.m. on April 23rd. She ate a lily, which is toxic to cats and could cause kidney failure within 3 days. I am a high school student who works 3 jobs, but I don't make enough to cover this. I need help and support, but my parents are unable to help me. Anything helps.