For my mother's mental health

[beatitude]

I've been concerned about my mother's mental health for a while now, especially her eating and drinking - far too little food, far too much alcohol.  I've tried to speak to her about her drinking before, as tactfully as I can, but she gets defensive. I've been trying to downplay my concerns but I can't exactly do that any more when I find her passed out half-naked on the sofa in the middle of the night and she's too drunk to get herself upstairs. Please pray.