why do people just blame on me?

[Zane]

Hi,
i'm living so well in my family, i know that we love each other.i've 2 sisters, mom, and dad. Everything is fine but just one thing: everybody just keep blame on me when i talk to them. i don't understand why. it maybe my fault in some cases, but i always get explanation from any of them when i talk to them.Once, my dad told me to go and search info from the internet of wooden floor, 2 days later i found it and i came to him when he was exercising. "dad, i found it!", and he answered by mentioning some thing like a book, and i obviously don't understand him, then i asked, and he shouted:"i'm counting (his exercise), u make me get it wrong!", and so, he blame on me! i am so disagree with that attitude.
In the previous morning, i had to go to school for extra-class( i'd already told him my schedules) and i told him:"Dad, i'm going to be at school in 7'30, so i have to shorten my exercise" it just means i tell him i'm going, and he shouted at me again:"what's that class? so will u keep exercising after giving up this one?" i'm surely can't understand what he thought, blame on me again.
Next, my mom. i'm going to describe my family first, my parents, they don't divorce but actually they don't live together as if they do, they'll have arguments all day, so each of them is living in different houses. and i live with my father most of the time. Once i went to her house and she was sleeping, i was playing computer games and some one came to my house's front door and ask: ( i don't really understand this) tell me the electricity number!" , and i waked her up, and she just complained me(something like why i didn't know the home's stuffs, why i didn't tell him myself,...) , again! it wasn't where i live so just let her do the stuffs! i really don't get what they think, am i so stupid and easy-going person? is that people feel that i can take all their bad feelings?
Then, my sister. Today, we were supposed to go on a 2-day vacation, we'll be leaving in the afternoon, i changed my mind and decided to stay home instead so i called her, and she started to investigate me:why i stay, will i go out with my friends... and she just get me nervous! she blamed on me again! i don't know if it's my fault some time, but why everyone just make it hard for me. i never get someone nervous with my conversation, but the others just keep doing that, even if it's my fault, people can take it easy. I'm becoming so angry, and i don't want to talk to any of them.