Conversion Therapy has been scientifically proven to not be effective in changing anyone's gender orientation or identity.  The only thing it does is attempt to repress the natural expression of a major portion of one's innate being.  This only leads, at best, to a temporary masking of the expression of that identity.  At worst, it leads to suicide, or a long and difficult process of undoing the damage from the treatment.  It is primarily a therapy that is only of seeming benefit to the concerned, but misguided, people who attempt to practice it.