Rest in piece Annie :(
I had a cat of 22 years put down in 2007, been with me for my entire life. It hurts when I think about the state I found my cat in when I found him. Laying there, liver shut down and was weak, dirty, eyes watery. It was a horrible sight.
I also called out to my cat when I got home, only to remember that he was dead.
As for your earlier posts, I know what it's like to want to quit but couldn't, and attempt suicide and survive, and get into close brushes with death and survive when you don't know how. It is hell. I can't offer any advice, and what has kept me alive I wouldn't recommend for anyone as it is a bad way to live, and I'm trying to break that part down so I can function like a normal human being. All I can say is you aren't alone, and you never know what good might come around the corner. Someone good came into my life when my grandmother died on the 5th of May, and a day that completely sucked was made into a good day. I still missed my grandmother, but something new came along. Hold on the good things, and wait for what is to come, That's probably the best advice I can give.