Life's hell..read below?

my mum thinks i'm always planning a controversy due to which she is ruined..she thinks i'm doing things to bring her down..if i say something, she'll take a wrong meaning out of it..if i do something( for example, getting myself some icecream from the fridge) she'll think i'm upto something wrong..and she is the same with my bro..she keeps complaining about both of us to everyone that we both are involved with my dad plotting an evil plan against her...i'm so fed up that i dint even feel like saying a word now..sometimes i think i should get married somehow so that i get rid of this family..and as for my mum, i have tried my best to clear misunderstandings if she had any in her mind but it doesnt help..i'v tried spending time with her..advising her to make her feel better but maybe cuz dad never loved her back, she has become like this..but what am i supposed to do?