what will you do if you're father is sick?

what will you do if you're father is sick, everyone in the house knows,, and he's sickness is serious. my father is suffering from diabetes, and his heart is diagnosed to have a huge amount of water. and also his lungs. but the problem is, my father is too hard headed, he doesn't listen. he still go to discos, drinks lots of beers, smoke ... he told me he wanted to live his life being like that, if he has his remaining months, or days, he wants to spend it the way he wants to... i care for him but he doen't listen to any of us. he is a good father(don't get me wrong) even in his situation he still proivides for the family. that's why everytime i talk to him about his health, he tells me, I never been a bad father. Even until now i've never forsaken you. let me live how i want to live my life. this is what makes me happy... I don't know what to do...