It sounds like you've gone above and beyond the call of motherhood. Cutting all ties to her is probably the best thing you can do for yourself right now. Please don't feel guilty or ashamed of your actions. You are protecting yourself. You have a right to protect yourself. Her addiction to alcohol is NOT your problem. Likewise, the solution to her alcoholism is not your problem or responsibility. SHE is the only one who can change her life - if she wants to. Until then, you are wise to have nothing to do with her. You were not being harsh, just realistic.