Noyone likes me and I'm sick of it...? Help?!?

[Creveny]

I'm a 15 year old girl and I hate my life. My family does not like me. I live with my older brothers (ages 21, 20) and my small brother whose 12. My older brother (whose 21) always hurts my feelings.. he makes me feel bad. I do a mistake such as forget to wash his plate, he yells at me and tells me I'm stupid. I'm not stupid, i get all A's at school. He ignores me when i talk to him and i get sad. My younger brother (whose 12) argues with me alot and usually takes some stuff from my room and i sometimes get mad.. but if i tell my parents there's no difference.. i'll still be treated the same way. When he argues with me, I stay quite and i know that if i argue with him.. everything will just be worse. So why should i even bother to argue? All my brothers go to the library, store, etc.. without me! They don't even tell me they went. When they come back from Walmart, Target, (any store) I have to arrange the things in the fridge etc.. They say [my name] come and arrange the stuff we got. I'm not their maid.. I'm sick of it.. I've started living with them for 1 month and i feel bad. My 21 year old brother grounds me when i argue with him which only happens like once a week. I stay in my room, mostly all day.. I just listen to songs sometimes to make me feel better I went to a new school this month and nobody really likes me.. I'm a nice, sportive, and outgoing girl.. I just don't get why people hate me. I met this girl at my school and she's kinda nice, i guess i have 1 friend. People laugh at me, about everything i do! In school, my chocolate milk fell on the ground.. noyone helped me just these mean girls were just laughing at me.. I rolled my eyes and cleaned everything up. What's even more stupid is that she told all her friends about that wtf? In my old school, I had about 5 or 6 friends and they were great, also since i use to live with my parents.. i use to like being there & having fun. My brothers use to never treat me like that, probably because my parents aren't in the house but even if they were they really wouldn't care... they would just tell them to stop bugging me, etc. but I have been sad for a couple of days because of how people (usually my brothers) treat me and how they think of me. I wish someone knows how i feel I wish I had at least a friend that likes me for who i am. I don't like feeling this way about myself. I'm actually a strong person and I'm not sensitive but since this has been happening for a month.. i guess i am sad for a while now.. I just can't take it anymore. Please help me? What should i do?

I'm so sorry this is long.
Thanks.
@Beehan: I have to stay with my brothers, my family lives far.. we live in the U.S but my parents live far away (20 hour trip) its really far ( so yeah living with them is an option. I'll also try my best to make more friends.