Roommate Bully

I have a house both my mother and I are the ones renting the house and she invited her sister to live with us and her sister treats me so bad there are days I cry I sit in my bedroom and it genuinely hurts to have a family member treat you bad.

She is jealous of my mother daughter relationship with my mom she wants a better relationship with her sister and she is jealous of me and she is disrespectful we were going in my car that I purchased for my mom and she said that I was disrespectful by not offering her to sit up front she would never sit in the backseat again that the front seat is hers and she has been so bad I cry sometimes it hurts so much.

She cooks in the kitchen for hours she doesn't clean up anything sweep, mop and she stepped in dog poop and I layed some newspaper when I saw her walking around the house spreading it all over and she texted my mom"your daughter put some newspaper on the floor for you to come home and clean it instead of her cleaning up the mess." My mom show me the text and we both agree she could have cleaned it up I had mopped and it's like she can't do anything I'm like the maid sweeping mopping cleaning dog poop and her laughing like evil stepmom stepsister in Cinderella and I don't know what to do my mom told me straight to deal with it or leave but she's not kicking her sister out and she hasn't said a word to her sister about respect for me it is a huge disrespect to me.

All of this hurts my heart me and my mom used to carpool go together to church and now since the sister aunt had a tantrum and doesn't want to go together in the car my mom just takes her and says I shouldn't go to church because people will notice we don't talk sit next to each other and I don't go to church and we used to go to church, grocery shopping and now her sister is there and they talk on the kitchen table and the aunt she doesn't say anything we don't talk to each other not a word.

I'm just tired I don't know what to do if I leave it's like she won everything my house my mom my cars it's like she's wearing all my clothes she's in my guest bedroom she's here using my refrigerator and I just feel like why is this person, who doesn't like me even here why doesn't she leave.