Am I a Bad person? This part of the question is just to fill the character requirement to post this question..?

Hey im fifteen and im kind of confused about how credible of a person I am. I know it sounds stereotypical, a teenager being confused about life but please don't get caught up in that. I sometimes think that im not worth the money that my parents spend on me. I get sent to camp every year and that is expensive enough, but my parents also pay for my lunch everyday and birthday/christmas gifts. I do talk about getting a job but when I do the idea is usually dismissed by my parents. My parents are nice enough, except our family of three (yes, only child) is substantially dysfunctional. My dad has a drinking problem and it does affect myself and my mother. He's yelled at both of us, has verbally harassed us innumerable times and has even physical harmed us on a couple of occasions. Of course you probably think that this is obviously wrong and that my mom and I are being abused, but I can't help but feel that I bring this on myself sometimes. My dad was brought up in a overwhelmingly conservative fashion, and this probably explains his methods of coping with what he considers a bad life. He has told my mom that he is unhappy. I do not get good enough grades for him, which means that I get 70s and mid 80s, and he thinks that I am capable of better. The thing is, I probably am capable of better, but I do have poor work ethics. Sometimes I am so lazy I acknowledge my homework and assignments, and yet still just forget about them, making a brief mental note to think of a pathetic excuse for the teacher. I have even done this with big projects. I view school as an obstacle to hard to tackle, so most of the time I don't even try. I do weed, not habitually but often enough, and I know it's not the best thing for me to do but it's something I enjoy a bit and it hasn't noticeably changed anything about my life yet. That being said, I never drink, not because im a hipppie but because I don't find it enjoyable. Sometimes I do wonder if it is a combination of the fact my dad abuses alcohol, and that weed is more appealing to me as a concept that makes me this way. I do have a liberal view on drugs, but im not an idiot. I am leaning towards liberal arts as a career path, which is funny because few of my friends share this interest. I also wonder if my intrigue with writing and film is just another lame excuse that enables me to have the poor work ethic and liberal outlook. I do admit that I am a nonconformist and that I sometimes slander things for the sake of individuality. When my dad drinks he sometimes says that im ungrateful and that I don't deserve what I get. I guess that my guilty insecurities and my desperate melancholic curiousity spawned this post. Am I the white over privileged, ungrateful, ignorant, lazy person im afraid I might be? Sometimes I try to tell myself that the weed and laziness is some modern take on a boys will be boys phase. I know that you are probably making a connection between weed and my lack of initiation, but I've always been that way, I've always found ways to temporarily weasel out of responsibilities and tasks, most of the time catching up with me.