Time Line Therapy is very useful to resolve past trauma and hurt.
Recently I found this suggestion in a book called ‘things to do now that you’re 40’ by Rebecca Hall:
Recall an insecure period in your childhood. Remember the things that troubled you. Now reach back over decades, with the wisdom you have now and tell that little child everything is going to be okay.
Great little technique – however if you’re aiming to resolve major trauma you’re better of going to see someone who can facilitate the process for you with experience.