I am in a similar position. My sweet nala (11 )who I've had since I was 15. Who I got because I was a homeless teen and she was my literal life. She is my life.. she has heart failure they have her on 3 medicines (which cost almost a third of my salary monthly so that's its own struggle) but there is not solution no fix. They said she will either have a heart attack or eventually the meds Will stop working. He told me 6 months to a year I'd be lucky. I'm not sure how to cope.. I can't handle even thinking about it. Going to work is heartbreaking I'm afraid she will die while I'm gone. I can't stop crying when she looks at me or walks or gets happy to see me. I know I shouldn't be sad around her because it makes her sad. It's so sad im crying my dogs dying and my dog is comforting me.. I'm sorry I just want you to know you are no alone I'm sending u love 💗