Im gonna start by saying I’m 21 and my sister is 15. Yes i understand what you’re going to say, “you have to be the mature one”, but let me explain at least before you jump to conclusions.

So my mom lets my sister treat me like shit as in give me attitude, yell at me, not clean or does housework, but only does it when she wants her girlfriend to come over and she only goes to school and that’s it. She doesn’t have a job, pay bills or anything so (you can work at 16 here in California, I know because I’ve looked it up.) In my eyes she should be the one doing the majority of the house work, but she doesnt. She only sweeps and mops once a week and that’s it. She doesn’t wash dishes, clean the stove, clean the bathroom or take out the trash. She doesn’t even do homework at home and barely goes to the program that my mom paid $75 for. My mom lets my sisters girlfriend give me attitude and have a say in family arguments doesn’t concern her and she doesn’t with us either, on the opposite end my boyfriend minds his business and stays out of it. He know my sister treats me like shit, but he stays out of it because it mine and my sister’s business which I respect him for. He doesn’t even talk to my family unless they talk to him. He just works, comes home & takes care of our child with me. No, he doesn’t do housework because I do it for the both of us ok. He works 12 hour shifts and it’s the least I can do since I’m not working due to the extra baby bonding 6wk off. On the other hand, I do what I Can when I’m home. I go to school twice a week 4 hours each day, I’m the main caretaker of my daughter so it’s hard to leave her unsupervised (because you never know what could happen) and do work around the house. I do what I can when my partner is home or when the baby is asleep. I run errands with my child bc I don’t trust my sister and how could I leave my child with someone that treats me like shit. YES I DO ARGUE BACK TO MY SISTER, but to defend myself in my opinion. It’s “immature”, but how can I let her treat me like that when my mom doesn’t do something about it? I don’t even acknowledge my sister when I come home, I honestly ignore when I see her or her girlfriend to avoid the attitude. She goes behind her back and sneaks over her girlfriend, she treats her bad as in giving her attitude & acts like the victim & even said that she’s going kill herself and my mom was going to be the main reason. Uses her for money, smokes and drinks when she says she doesn’t & YES I BLAME MY MOM. My mom won’t discipline her For shit. And what does my mom have to say for all this? It’s her daughter, her choice if she lets my sister treat her that way & it’s my fault my sister treats me like shit, and her house when the house is only under her name, but my boyfriend and I pay half the rent, half the market, and the majority of the bills? Also my mom tells my stepdad to stop giving his kids (from his previous marriage) $$ because they only use him for money and things they need and that they don’t even call to see how he is. Ring a bell? Do I smell a hypocrite? Yes I do. She can’t even take her own advice.

I don’t know what to do. I don’t. I want to move out, but we just had a baby and my boyfriend just got a new job and I’m in the process of getting a new one as well. We wouldn’t be able to move out or anything w/o major struggle. Idk what to do. It feels like I can’t do much than to suck it up.

edit*

We moved in together in 2017 March. Between my mom and I, we put 3100 for the first & last month & safe deposit. The house is under her name bc I didn’t have credit and she did at the time. If I do move out, do I ask for my half of what I out in or just leave it as is? If I move out, yes I will struggle, but so will she with paying more bills and more rent so that’s another reason why I don’t leave.