Trying To Find Peace

It's been a month today since I lost my husband, and I am so lost and just can't find any peace of mind.  All I do is focus on him and constantly wonder how will I go on? Although I have wonderful friends and family it's just a lonely and empty feeling 24/7, his death was quite sudden since he was diagnosed last March with stage 1 lymphoma, and after treatments of radiation seemed to have beaten it had clear scans for several months then in January his pet scan came back stage 4, it was devastating I just could not believe it.  He received 3 chemo treatments and got an infection and passed away in April I am still in disbelief and angry and scared I have no peace.  I pray that God will give me the peace I need to go on, I miss him so much he was my best friend and soul mate and now I feel like part of my soul is gone.  When I get up and he's not there to have coffee with me it breaks my heart I cry myself to sleep sometimes because I am so tired of thinking and crying.  I am hoping that other people can help me find a balance somehow it's been only a month I know and it's so fresh but at the rate I am going I feel like I am ready to just find a place to hide and not be seen again.  I go to church and I have so many people praying for me sometimes I fee ungrateful but I can't stop focusing on how quickly this all came to be.