Ibogaine in all respects is a sequenceof life changing occurrences. Many recount it to the creation of there own self. It's an eternity of a trip that seems to never end. It's not for the faint of heart but there's no other option when addiction has you by deaths' grip!
However, let's not jump too far from the main topic at hand.
As Uunk said, you might be substituting an addiction for another addiction. I'm sure Kratom use is much more escapable then Methadone use as Heroin addicts themselves say Methadone is a harder habit to kick.