I want to die because of bullying, I can't take it anymore!!! PLEASE HELP!!!!! PLEASE ANSWER!!!!!?

[Seth]

I can't take it anymore!!!!! I'm 13 and I've been bullied my whole life!!! Well this one girl named Melody who's been calling me gay!!! She started off by calling me gay at PE with some of her friends and in my anger, I unintentionally said a racist comment (Melody's Indonesian) and she held a complete grudge. She posted taht I was gay, a stalker, and that I couldn't have anything happen in real life so I posted fake stuff" on her Twitter and after I confronted her twice, she stopped posting but she was bragging and smirking at me and laughing at me and talking about me to her friend. Well I got my twin brother to help me confront her on Facebook and just now she was saying that people get respect to give respect and I dont deserve it thats why she's mean to me!!! OMG!!! I wanna kill her!!! I wanna kill myself!!! I am so pissed at her cuz she has no f-ing idea how much I've gone trhough and I talked about how I stand up for bullying victims and that I have friends who I care about who went through hell and she has no right to complain. And she also said that my suffering (my parents are divorced, I'm being bullied and there's a lot of other stuff) was stuff that I "probably brought on myself!" I'm so angry at her!!! I wanna die!!! I just want to kill taht f-ing b***h!!! I wanna just murder that ugly a*s b***h!!!! > What should I do? PLEASE HELP ME!!!
I said a lot of stuff back to her so I'm thinking that if I reported her I'd get in trouble with her and that's unfair. Plus, she tried to say her life was hard cuz she's Asian and she said that my suffering was brought on myself by me. And I already said this but she said I didn't deserve respect!!! I can't take 4 more years of this and my mom won't let me switch schools or homeschool and she makes me go everyday. I don't know what else to do!!!
I tried to make a deal with her that if she left me alone and didn't even mentioned my name again, I'd leave her alone and she's like the stubbornest person I've ever met. She won't let this stop because she is desperate to be right and yet she's trying to tell me to live my life when she's saying that I don't deserve respect after everything I've done for people and after all the crap I've been through, she says I brought it on myself and I'd "trip in her shoes" because I have "no idea of the expectations of being an Asian." WTF?!?!?!
I've been dying to post about her from the beginning but that'd get me arrested and she said she didn't care no matter what I said or did, yet she continued. And the toughest friend I have that's a girl lives in another town like an hour away. No girl could pwn her like that friend could, that's one thing that's so depressing.