Enough is enough

17M. I am done with this hell. My parents have been arguing over things ever since I have known them. I have seen my dad shout, my mom cry etc etc. it's always over my grandma(dad's side). My dad's elder brother is estranged, so my grandma lives with us. She is super arrogant, hates my mom, steals stuff at home. You get the idea. She has been sick recently and couldn't walk due infection caused by her disgusting hygiene, so we have a helper at home. My dad even though he earns pretty well, ended up almost draining his account on medical expenses of my grandma, she is fucking 80 years old and my mom is already angry over the expenses. My parents have been arguing about her for so long, I am tired of this shit. I will be going to college this year. I just hope I can stay away from this hell. Looking at my parents arguments I am now scared of getting married either.

Edit: idk maybe due to this I never shared my personal feelings to them. Worst part, my dad watches spirituality videos on youtube but doesn't apply them in life, such a hypocrite.

I just hope that even my worst enemies shouldn't have this kinda emotionally damaging childhood

Edit 2: looking at the comments, guys even though I hate my grandma for this, srsly I don't want to kill her nor wish for her to die. It's just that this shit should get fixed by any means. Thanks for your support, I didn't realise many of you have faced similar situations. Also no toxic comments please, be morally considerate