can anyone give some suggestion

I can understand your feeling very well,because your father is same to my father.My father also likes drinking very much.My mother,my brother and me always worry about him very much.At the same time, we find that this habit is very difficult to modify.We have tried many ways,we often persuade my father not to drink so much,but all of our effort is of no effect. I am sorry i have no ideal how to help you,and i hope more friends can join the discussion and help us.