Should I really apologize for this?
I 16F live with my mother 45F my brother 18M and my sister 8F.
For some context my father died suddenly two years ago due an od and this really messed my mom up like she was a foster kid because her parents were really abusive and she says that my dad's passing is the worst thing to ever happen to her long story short she shut down like completely and she stoped parenting my then 6 year old sister so I stepped in fast forward to now I have finally helped her out of her depression she wants to start being sister's mom again but she does not respect or listen to mom at all (which makes sense ) but she listens to me and mom has noticed this and she is upset by it so she has been regularly screaming at me for "parenting over her" but most of her "parenting" has been screaming at sister or locking her in her room or calling her names or some combination of those and I have had to be the one to calm her down and comfort the sobbing 8 year old who's mom just told her that no one loved her a few days ago I confronted my mother about this and she has not talked to me sense now my brother is telling me to apologize so she will stop wandering around and sobbing loudly outside everyone's doors but I don't think want to this time. I need advice on this