Help me? My mother!!!!!?

My mom has been getting on my nerves.anything I try to talk to her about she dosent wanna hear it she's to busy I guess. I tried to discuss my algebra grade d+ grr but I tried telling her I was concerned and she goes guess ur gonna have to retake it. It horiffys me she dosent even care I try to sit down and talk with her about everything but all she says is I have attitude. She's nasty. She puts food in the oven which I thought was cookin. She melted cheese on it and it burnt the whole dinner was ruined. She said didn't you smell it burning I didn't actually. So I get blamed for it she tells me y do I have to do everything it this house. I already tried talking to her I tried asking my dad to talk to her my brother to talk to her iv even written her letters because everytime I ask her something I can never get a word in please help what do I do?!!!