Feeling so alone, I don't know what to do.

Well, I am back to talking to this computer. I tried to make my life better by being positive and keeping busy and trying to be grateful for what I have, but that only worked for a little while. Now I have sunk back in this black hole and don't know how to get out. My best friend passed away last year and she was the only person I had left in my life who loved me and never judged me, we had been friends since we were five years old, and now shes gone and I have no one. I don't know how to deal with this anymore. I pray every day.