
tw//abuse, murder

I'll try to make a long story as short as possible, i live with my (abusive) father (he's the only family i have, my mother died when i was a baby) one of the many reasons being that currently i can't keep a job because of my mental illness. We have been living together for years and i always try to keep things calm despite the abuse because it's the only way i have to survive.

For some reason my neurotypical sister came here (to our house) a couple of weeks ago and the whole time she's been really triggering me and just being annoying, she's always picking fights and putting me and my father against each other (which literally puts my life in danger). My life was already so difficult before she came but now I feel like i'm in a near death situation.

This weekend she said she's going to stay to live here, I immediately had a mental breakdown and started crying to my dad saying she had to leave and that she had been making my life imposible.
Now after talking to people and thinking about it i realize that wasn't the best thing to do, but obviously the panic was so much that i wasn't thinking. Especially because of the fact that it was in front of her, I should have talked to him alone like she does so she couldn't lie to defend herself like she did. 

My sister got really mad at me (because of that) and threatened to tell my dad that i dropped out of school; if she says that my life is in danger because my dad has made clear in various occasions that he would k*ll me if i do that. 
Now I think she did tell him cause he asked for an interview at my school and refused to leave extra money like he usually does.
I don't know how someone can be so cruel, but considering she saw my scars so many times and told me to 'cover cause they are gross' i guess i shouldn't be surprised.

Please, i need help, advice, motivation, anything, i really really don't know how to keep going, i barely have any friends to help right now cause i was already in such a dark place and this has been so unexpected. I only have one family member i could talk to but she said she doesn't know how to help either and isn't really seeing the danger of the situation.