The only way I have survived living at my house has been my just completly tuning what my parents say. You need to live your life the way you want to, and do what is right for you. If you feel like smoking has been benificial to your life, then hell yeah keep smoking. But if your dad doesn't want you smoking because it has gotten you into troble in the past then maybe you should listen to him. Fuck this time of life is so hard, it's like you should listen to your parents but at the same time I feel like they just speak to us wrong, like he should accept you, and respect what you think is right, but at the same time he might be right. Don't listen to me I'm so confused about everything in my life right now, the same sort of shit your talking about with having problems with parents n shit. But at the end of they day I never listen to them, I just like to go with the flow and figure shit out on my own.