Survivors of any traumatic event need a way forward to overcome what they've been through.  Focussing entirely on the event and their powerlessness over circumstances makes people into victims, not survivors.  For healing, there has to be a "but."  It was terrible, but I survived.  I was lonely, but there was one person who saw me for who I was and encouraged me.  My friend committed suicide, but I knew that things had to get better. If we get so engrossed in the negatives that we can't even admit the possibility of the positives, there is no way to heal.