So recently I've been really getting annoyed by my sister, so has my father too, I haven't talked to much to him about it but I'm pretty sure hes close to losing his shit. My sister does nothing useful in the house, doesn't clean or anything just stays on her laptop all day and occasionally goes to school, but we cant fucking argue with her because every time she instantly uses her pussy pass and denies both my dad and I a chance to even get through her thick fucking skull. We complain something to her and she says shes been helping out around the house constantly yet nobody else help her, then if we get into some sort of argument she just shrieks like a banshee until we stop and we always end up losing simply cause we're the only ones who have a want for some fucking peace so my dad always keeps admitting that he was wrong whenever he gets into an argument with her. How do we or my dad get a fucking hold of this? Shes literally controlling the house, everything my dad asks me to do I do because hes my fucking parent and guardian and he deserves to have some free time but this has been more stressful than ever lately.
You must be the oldest sibling? You respect your dad, your sister doesn't.
This is similar to how a bratty child/pet acts. They control the house essentially.
You and your dad make rules and give her chores, but your issues are that you don't enforce them.
Like a child, if she doesn't want to do them, she'll do what she can to get you both to back off: by shrieking.
She needs rules and enforcement. She misbehaves or doesn't do what she's told: no allowance, or no laptop, or no car, or no internet, or no phone. She shrieks? Let her. She tries to hit? If she's old enough, call the police. If not, restrain her until she's calmed down.
She misbehaves because there isn't any punishment.
I will tell my dad this advice, but is there any way to do this while avoiding a fight? That's literally her only defense mechanism and I honestly can't fight with her anymore because every time it happens I find it literally impossible to keep my cool. I can handle calm and collective arguments or debates but when the other person has literally nothing to back things up and they end up winning it makes my blood boil.
No there isn't because both you and your dad instilled her bad behavior. No it's up to both of you to fix it or (if she's old enough) kick her out of the house.
Learn to deal with the shrieking. It's like training a dog not to bark. It'll take time, but the end result will be worth it.
If she starts to shriek then leave the room. If your dad takes away her laptop/phone/keys to the car, etc. then have him put it in a safe or his bedroom and lock the door. If she gets violent then call the police. Another good punishment is taking her bedroom door away. If she plays loud music or puts the tv on loud, take it away.
If she tries to argue, say "this conversation is over" and walk away. Don't show her you're getting angry because that'll show her if she keeps doing bad behavior then you'll break. You break, she wins, you and your dad remain unhappy.