<human>: My sister is in high school, my moms 55 and my dads 77. Every night while my sisters working on her homework, my mom turns off the internet, because she wants my sister to go to sleep. My sister asks for it to be turned on and my mom says no, and shuts and lockes her bedroom door with the router in it. My sister starts yelling and screeming and breaking things. (By the way my sister has a single F as a grade in one of her classes) my mom starts screeming about how shes a failier. I can't sleep, my dad gets so mad that he trys hitting her with a candlestick - everyones yelling and screeming; my sisters crying, I'm crying. And it's basicly tearing my family apart. This has been going on for months now and my sister earlyer today said she wanted to kill herself. I really need help. Please

Sorry about bad spelling, I've been crying off and on for about 3 hours now and I can;t type well.

Give me the gist of the text in a nutshell
<bot>: My sister needs internet for work and my parents turn it off so she can go to sleep; and she doesent like it.