How to calm one's mind

It's midnight and there are so many thoughts, images, ideas flooding my heaad.  I can't seem to escape my own process of thought.How do you quiet the inner tears, the worry, the wondering?I guess that is the eternal question: How to calm one's mindThe memories, mistakes, dreams, and fantasies are all overwhelming.I am haunted by today, anxious about tomorrow and regretful about yesterday.In my mind I am aware that only lessons can be taken from the things of the past, but as real as that is to me, I just can't release it from my head.  It keeps replaying over and over and over again. I feel trapped between my first love, pain & fear. For every issue that is resolved two surface in its place.