You don't have to share in Al-Anon, if that's what is keeping you from going (though it sounds to me like you are just making excuses-- I did that for a long time). Or, maybe things aren't screwed up enough yet, though it would be a shame to wait that long to start meetings considering how great I think they are.
I've been in meetings with people for years who never share, but keep coming back.
Take what you want and leave the rest.
Cyranoak