Oh my. Your wife needs help. She's not taking her meds and she has schizophrenia? Bipolar? And there are kids in the house that she is neglecting? That's not safe for these kids. They need an on point parent. Mental health issues are severe in both of those disorders and she may not be fit to have her children in her care. Do they have a father you can contact or grandparents that can help with them? That is my main concern. Those kids need a healthy parent to care for them. And if she refuses to take medication or seek appropriate treatment, you are under no obligation to stay with her. That's not a good situation for your own child and I can not encourage you to subject your child to that. Please get help for her kids by going to a responsible party who can take over their care and consider that this may not be a healthy place for you and your child either. I wish her the best but she needs proper medical care and help and if she is unwilling which is often the case in both of those disorders, you can not have a peaceful and functional home with her. good luck