Hi NewFighter,
About my alcoholism, and now sobriety? I think it's wise to be selective. I trust SR, obviously. My therapist. People in AA, but I'm not going to many meetings. An old lover (another alcoholic and addict) and my current girlfriend also know, but with them we don't really discuss it much.
So for me so far my trust about this goes mainly to SR and my therapist - these are also my most effective sources of support and learning.