I am a step mum to a 6 yo girl, I have two children from a previous relationship, one who lives with bio dad, and one child with my husband.

My 6 yo SD is a nightmare, and I wish I could put it another way, I really do. She came to live with us not long after she was 2, and it's been rapidly downhill from there. She gets worse every year.
Her contempt and resentement and jealousy towards all of us is so unbearable my husband and I are considering seperating, which breaks my heart, and his.

Theres too much happened to write everything here, but the worst things she does is glares at me and my husband at the dinner table EVERY night, has done for years, laughs when her dad disciplines her, refuses to speak to me AT ALL, refuses to get ready for school in the morning, won't get out of bed, is rude to everyone in the house, consistantly, refuses to eat most meals I/We prepare for her, won't do things like wipe her bottom or wash properly, refuses to acknowledge her younger sister. The only time she seems to be normal is when her GP's are around, then she acts like the best child in the world, becasue they only acknowledge her as their grandchild and she thrives on the singular attention.

She has stated many times she misses her mother, who lives in another state, and she wants to live with her. I think that's why she behaves the way she does, She's just not happy with us, and I can understand that.

I really feel for everyone's sakes she should live with her bio Mum, instead of casuing so many issues and upsetting the entire household.

I've written this out very quickly so haven't been able to detail most things,but we have tried everything to help her, inculding special attention, toys, spending time with just her, disciplining her, nothing helps. We have taken her to a child psychologist, who said she suffers from extreme jealousy and resentment, and stated that she wished to just live with her dad (my husband) wih no one else in the house. She found that SD displayed "ownership" of her father, and saw herself more like a "partner" to her dad than child.

I am at the end of my rope, as is my husband, and we are tired of th eother children suffering through all of this misery becasue of one child who is so resentful and unhappy.
I am beyond wanting to help her anymore and really think she should be with her bio Mum.