I need advice

Whitney
Me and my husband have been married for two months together for four years and since the beginning his mother has not like  me I don't think I've done anything for her not to like me but she  gives me a dirty looks and talk bad behind my back to his other family members she's making rumors about how I was a slot before  her son and she think she knows everything about me but she doesn't because my husband's was my first guy I slept with and all. My husband thinks it might be because she doesn't like how I dress should I change how I dress for her just to like me