You go to the hospital or call a help line or go to a church and talk to the priest/preacher. You do anything you can to stay safe and keep holding on. You keep posting to us. When you sleep, do you listen to music, also? If not, stick some headphones on and drift off to your music. If you do, change the type of music from what you listen to in the day time.
Look at the things that making you feel dead. Write them down, specifics, not generally. Then look at what you would like to change about them and how you could change them--even if you think it's not possible. Share those with us if you'd like, maybe we could help. I wish you peace.