We have a large pet cemetery. Know exactly how you feel right now.
After losing our first couple of pets, we found the best thing for us was get right back on the horse. It was healing and we helped another animal - all of out pets have come from the pound, a rescue, humane society, etc. I'll bet there's another animal out there that needs you just as much as you need them.
I’m so sorry. Thinking of you and your beautiful cat. I hope she finds some of my pups up there for a play date. Hang in there. Reach out if you need to chat.