I can't stop crying

My cat went missing 3 days ago and I can't find her. She is my best friend, the only one that understands me, keeps me happy. I live next to a big field with lots of coyotes, foxes, and birds of prey that prey on cats and small dogs. I've already lost a cat before from being eaten, I can't have this happen to me again. I have no more will power to do anything. :'(