What can i do? my sister is trying everything.?

when your a lil sis.

and you look up to your big sis for everything she's totally your hero.

but she's depressed now.

and i can't sleep or eat or even think of anything other than how it used to be.

before everything went into a downward spiral.

when i used to cut she'd cry and say i'm here for you.

anytime. or talkin is better than cutting.

and when i cut my last time she said it was her fault and it wasn't.

i need to be strong for her.

any advice?

please she means the world to me.

please help.

idk how to be a good lil sis anymore.