I invested half of my saving ($25,000) into ETH when it was $725. ETH has now plunged to $459. I am very worried I will keep losing money and I fear for the worst. I want to go kill myself 
It's just a money so don't kill yourself because you can earn it backed later on, i believe you have a good job with that big savings. You invested a quite a large amount and yet you want earn that fast? that's not how it should be, stop getting in yourself into crypto that much, hodl for a long time and you'll be happy again believe me 