What do I do now?

They say things will get better as time goes by but it doesn't.  Every day seems to be even harder than the last.  It's been 2 1/2 months since my husband left me.  He was sitting a few feet in front of me and staring right at me when he left without even saying goodbye.  A massive heart attack was what they called it.  Sudden blood clot to the heart that took him instantly.  No warning, no help, nothing!  One minute we were getting ready to go canoeing with family and friends for the weekend and the next, my life came to a screeching halt. 
What do I do now?  I feel so lost, confused and empty.  I want my life back!  I want my husband back!  I want my soul back!