Your past history and all of your hurts are no longer here in your physical reality. Don't allow them to be here in your mind, muddying your present moments. Your life is like a play with several acts. Some of the characters who enter have short roles to play, others, much longer. But all are necessary, otherwise they wouldn't be in the play. Embrace them all, and move on to the next act.
The past is a trail you leave behind, much like the wake of a speedboat. That is, it's a vanishing trail temporarily showing you where you were. The wake of a boat doesn't affect it's course-obviously it can't since it appears behind the boat. So consider this image when you exclaim that your past is the reason you aren't moving forward.