In terms of trust issues.... One thing I'm considering is finding a church or recovery program somewhere in another town and going there anonymously - calling ahead to make arrangements - and asking for their support in a fifth step.
I really do feel there is deep power in sharing what burdens us with another human soul - and to do so without any encumbrance of fear or mistrust would be liberating...
Secrets can pull us down, even if we share them with A Higher Power.....