I'm a single girl who’s in-law also lives with them (joint family).
My in-law constantly competes with me and copies me in every thing like even in small least important things frm trying and copying the same dress/jewelery/hijab style you name it. It irritates me so much. She can't see anyone having something better then her, if so then my there is always a riot with my brother at home or with my parents. She can't even see someone happily having something nice or more succesful then her.
Please tell me how should I handle this

We just need to be supportive to one another and seek help from Allah swt. May Allah ease your tests