Daughter violent towards me as recovering from alcohol abuse

[Teresa]

Perhaps there is someone out there who can help?
My daughter is 32, schizophrenic (untreated) and a recovering alcoholic. She lets me keep the purse-strings because she knows she will otherwise spend on drink. I live 30 miles away and go once or twice a week and buy food, for now, also, driving lessons. She has beaten me up again, but if I don't go she will starve. Her father pays for her heat and light after it was cut off. I buy whatever else she needs. She has no money of her own, having drunk it all. She will never be able to work and will drink again if she goes on 'welfare' (difficult enough to get it anyway).

I cannot let her kick and hit me, etc. What ever shall I do?