More or so a vent, I just need to let off some steam. Ignore if you want I don't care.

So today was just horrible. Morning started off with waking up late for physical therapy, then when having to drop off my sister my mom forgot her work cloths, so she had to rush home to change. Then we're on our way to drop off my sister at school and she get's out of the car and we see stains running down her legs. My mom becomes furious and we have to go back home so she can change. We get home, sister changes, we start off. This is when the mental break down occurs, my sister has over done it with my mom and her lies, and lack of hygiene. It's like my sister doesn't even care anymore and we don't know what went wrong. My mom begins screaming at her and suddenly just pulls off to the side and breaks down into tears, now she's saying how she's "Had enough, can't do this, should just kill herself." Right in front of us. She turns the car around (haven't even left the village yet) and goes home, jumps out of the car, slams the door and runs into her room. I'm now crying because apparently this has also become my fault, my sister is in the back crying and saying she hates her life and she needs help, I don't know what to do or if I should call someone. My dad has just got back from Afghanistan and he and my mom are already fighting. I finally go into the house with my sister following, she runs into my moms room and they finally talk it out. I'm still crying, pretty much hyperventilating, in the kitchen not knowing what to do when finally my mom and sister come out and seem fine.

In the long run though, I can't get my moms words out of my head, my own mental status is just slowly decreasing in the day, and I just feel worthless and that all I do is cause havoc. I try so hard to stay calm and I bottle so much in so that way I don't have to burden others with my problems, but now I just feel so week and helpless. I'm worried for my mom and family, I just don't know what to do.