Tell Me What I SHould DO!

Hey All You Killjoy's! I Am needing some help....again. But this time it isn't for me, its for a girl that rides my bus. shes a year younger than me, and she has a hard life. her mom, makes her do everything around the house, which includes taking care of her three younger brothers. three kids i know on my bus have talked her out of suicide, multiple times. i myself have done it once or twice. i have showed her MCR (Of course) and a few other bands, but she just doesn't have the time, plus she really isn't into this kinds of music. which ain't a big deal. but now i don't know how to help her. i want to because she doesn't deserve a life like this. but she also doesn't deserve to die. she believes she useless and doesn't know how to do anything right. i have proved her wrong, but that's not helping anything. What should i do. i want to help her because I've been in her shoes once before, and i don't want her to go through with what i had to.