I know how hard this is. My mother and father both were alcoholics. and I could not make them stop either. usually, it is great pain and severe consequences that finally gets through their addicted fog, but sometimes they dont stop at anything.
could you just hand her over, into her higher powers hands? i read that here, and really, it makes sense.you cannot make her stop, and you must save yourself from the sickness. mentally it is more than a person can take to keep trying to convince them, over and over again. you need to save the part of your family that you can- you. do it for you. it is a family sickness, and will make you physically ill as well as mentally.
thoughts and prayers. keep going to alanon, and posting here. you are not alone.
hugs
chicory