Overwhelmed and Depressed

I am really struggling coming to terms with getting divorced. I have am in my new home, but I am so lonely and lost. Started a new job and will have to move in two months again to a new city. By moving to a new city, I am really making it final. Just such a confusing place to be as you look back and remember the good times but forget how hard the bad times were in the relationship. The worst is the loneliness and no-one to talk to as I am not ready to open up to anyone yet. Just trying to swim on my own for now. Finanicially the divorce has destroyed me and I have to start all over. I supported him and his family for 13 years, but that was my bad decision. At times, I am so angry and then the next moment I feel paranoid imagining the worst case outcomes. Am I going insane? My psychiatrist, with whom I saw for 8 years as I have had anxiety issues and my husband addiction issues, passed away. Tried seeing a new person but just dont have the strength to start a new relationship. 

Thought by joining a group with people in similiar situations will help me gain perspective and hopefully strength. God Bless.