I don't post a lot, because right now I have to work a load to get my debt payed down so I can improve my credit/buy a house so thank you for accommodating my rant.

My mom is coming away from a three year long opiod binge. I have a hard time telling what's going on as far as how she acts goes. Sometimes she screams and is extremely hateful for no reason. (I'm not a minor so it doesn't bother me so much) My sister was having an argument with her this morning and she screamed at her, calling her a mother F-er, and it startled me so I jolted up and asked what was happening. I was told that my sister told her that the way we were treated when we were kids (my sister is 20) isn't the same as how my brother gets treated as he grows. That it was unfair for us to have to eat school lunches but our brother gets to have a sack lunch.

That being said, my mom, a woman who is going through the change and coming off of opiod (forgive me for misspelling that) addiction is not and has not ever been perfect. She's told me in my adolescence that if she would have known that we would have our own personalities she wouldn't have had us. She's far from status quo car rider mom.

My sister told my minor brother's school where he should go after school. She's not an authorized adult on my brothers file, and then told me her elder sister how to continue to proceed with things and what I should and should not do with my mom.

Our mother lacks on things, but why drag me into this? Like i know it's hard. She's never been perfect, but the only thing I had to do with this was that I'm currently in a position where I have to stay on my parents couch. I don't pay rent. I'm thankful. She doesn't pay rent, and she's constantly on my moms ass for lack of better words about really insignificant things.

My moms addictions aside, she has had two severely ill underage children. I had childhood epilepsy and my mom was less than 20 when she had me. She worked three jobs and made sure I was in school and at the doctor appropriately. Right now, my brother has a 43 degree curve in his spine and my step dad is able to help with the fiscal parts of that while she shuttles him three or four hours away from home to the specialist every time he needs to be brought there. He makes all A's and B's.

Why is my sister malfunctioning like that?

It sounds like your sister might have a lot of pent up anger. I can relate. My grandmother was horrible, and it made me really critical and aggressive towards her. And while she definitely deserved it, it wasn't 100% healthy for me to be holding onto all that anger, you know? Maybe therapy would help her work through it.