Help Miss Tigger!

Miss Tigger is a sweet and loving cat who enjoys belly rubs and watching movies! The other day we noticed she was acting weird and that there was something wrong with her eye. We took her to the vet and they said she has a tumor but to get anything done we need to take her to a specialist. I lost my job due to COVID, the cost is insane and from what I’ve read, if we don’t get it taken care of soon she could be gone in less then two months. I love her so much and she is my world, I’m scared and I don’t know what to do! Please help if you can! Any amount can help, thank you so much!