Heya Lisa -
You can share your anger at an AlAnon meeting!! Just like here, you won't surprise anyone - they were probably that way once and they will have compassion and offer you strategies for dealing with it and hopefully getting past it. Nobody walks INTO their first few Alanon meetings serene.
You sound like you have really reached a brick wall! And you're mad as hell and don't want to take it anymore! You gotta let it out - but always with the intention of letting it go too-- anger is good fuel for blast off but you need to have a plan for staying in motion...
Easy does it-
Peace,
B.