Yes you can heal your own soul. You can clear the Chakras of you mind=body=soul. In the book Shaman, Healer, Sage by Alberto Villoldo PhD he provides his expriences learning from the Shamn around the world. Here he also explains the clearing of chakra. I think it is a good source for information because it is authentic and from a scholar.
Traumas that occur in life need to be cleared.
Otherwise they can haunt. This is all I know.
Also, that Love clears the part of one that is in fear. If you can turn fear into Love by any means possible that will clear it in time (a short time or a long time as you wish).
Whatever path you study these elements being present you can use to heal yourself.