That is quite a story, a shame that you have suffered so much hardship in your life, I hope the ayahuasca will help you see your wants and needs more clearly.  With the ghosts that haunt/haunted you its quite possible that it is your on PK (psychokenesis) troubling you because of a negative attitude. If you could locate someone to assist you with redirecting these powers you may find more success in your life.  Try and read up on  poltergeist and PK theories they may not be exactly true  but it's always a thought.

Happy Travels