So dam pissed off with my mum!?

she is like a mad woman already. okay so this is the situation. and this is not really about mother to son but actaually its about mother to grandmother. shes like a mad woman TOTALLY. okay, so she is the second eldest child of the family. then she is always JEALOUS of her younger sister which is also my aunty.. which is also the 4th child. and she vents all her anger on her mom. and she got scolded by my aunt. so she is not happy. and its somewhat about financial stuff. then she said to my grandma "If you want to help, then help but how can you help so little?" and its like... so DAM FREAKING FKING UNREASONABLE. and when my grandma says just like "eh, let me tell..." then my mum would go on her knees and beg "SORRY SORRY SORRY" and then she would speak in mandarin... thinking that i dont understand her just because my mandarin failed in school. she was begging and saying "stop bully me already stop stop stop stop stop " and stop like at least 6 times she will say. but the truth is, my grandma helped her a lot already. she paid the fees for my piano lessons. and food (as we are moving house so we had to stay in her house for some time) and my mum dont even care about the tidyness in the house. and then you know whats the worse part? my grandma was just washing the clothes. then my mum was like finding trouble. she started saying "That Fatty(referring to my aunt)! always trying to look down on me! YOU ALL BAD HEARTED AND DONT WANT TO LEND MONEY TO ME" "I WARN YOU... YOU BETTER LEND ME YOUR MONEY OR I WONT EVER LET YOU OFF!" its like WHAT THE **** IS THAT. so just 5 secs ago... she said the same thing. then i told her "Are you scared of your sister?" then she stopped talking. so this is just to share my anger so that i will feel better. SIGH