I just don't know what to do about my dad!!!?

I have no idea what I'm supposed to do! It's my dad! He doesn't even act like a dad's supposed to act! He's not home half the time, and all he can say to me is go do this, your on the computer the whole day, and stuff like that. Sometimes I feel like I hate him, but I shouldn't! He's my dad! And I'm on the computer the whole day because I do school on the internet and I try to get as many lessons done as I can in one day. Last night, he told me I shouldn't go on the computer anymore. I was playing games, and he got soo mad! I told him that I'm on the computer the whole day cause I have school work, but he still told me to get off! He doesn't even KNOW me! When I was little, he was always at work early in the morning and he came back late at night. So I was always sleeping when he was actually home. And I know he has to work and earn money for the family, but he's so mean to me. I'm happy now when he leaves the house. We recently moved to a different country, and he's been on me and my sisters backs to learn the language. He sends us to a school thats not in english, and right after school, we eat lunch, and then we have a tutor who comes to teach us for 2 hours, and then me and my older sister get on the computers for school work. Our WHOLE DAY is taken up with work, and all my dad can say to me is that I watch TV and play games the whole day! He's been out of the country for TWO MONTHS and he thinks he knows my schedule and how I spend my day. He always yells, and yesterday night I was on the laptop on the couch, and I had my pencil sharpener next to me. My sister came, sharpened her pencil, dumped the sharpens on the couch, and made a big black smudge. My dad saw it, and he said it was MY fault because I let it on the couch. I was sitting right next to it, and I saw my sister sharpen her pencil and I told her to throw the sharpens out, and I didn't notice she hadn't done it until my dad yelled at me. I tried to tell him, but he just told me "Clean it up right now! This is your fault!" . And he expects me to love him just cause he's my dad. I hate him and it makes me cry. I just want a real dad! He doesn't have a job, and all day he takes one of the computers (the fastest one) and he tells me I'M lazy and he says I don't help my mom in the kitchen, but I DO. I'm always the one that makes the desserts he loves to eat so much, and if he doesn't like the iced tea I make, he tells me I don't know how to cook and that he won't send me to chefs school. He does NOTHING the whole day, and I really TRY to please him, but everything I do, he has something bad to say about it. And we have marble floor in our house, and my little sister was jump roping, so my mom told her to do it on the rug so she doesn't fall and get hurt and then my dad started yelling at my mom and he told her to let my sister fall and get hurt and he said that she has to learn. He has such messed-up ideas! And then he acts like he doesn't now why I'm mad at him. I cry all the time. I just want him to LEAVE and NEVER come back. We have a certain amount of bandwith we can use a month, and he tells us not to download anything, but meanwhile, he's downloading everything in sight, and then he yells at me and my sisters when we run out! And I try not to let anyone know that I cry all the time, but last night I couldn't hold it in any more! I cried to my mom and she was really nice and sympathetic with me. She told my dad that I was crying and he didn't even say sorry to me! He just gave me a kiss and left it at that! It's not enough. He's too proud to say the word 'sorry'. He yells and when he turns out to be wrong, he just says 'oh.' he doesn't say sorry. It's so much for me to deal with! I have SO MUCH work to do, and he just makes it all so much worse!