Are you in New Zealand?

Do you have an opportunity to get subsidized housing, municipal flat, some type of temporary shelter? You made several threads about bad situations at mothers house. For whatever reason your mother allows her adult children to bring all these unrelated people in, boyfriends and fiancées, and it clearly causes problems? And she doesn’t seem to be able to stop her adult children and all these people fighting in her house.

Have you talked to government officials or mental health agencies about other opportunities/places to live? If all of you are unwell and unable to have a full time job (except your sister) perhaps you can qualify for government subsidized places to live.

I’d start looking. Let us know if you need help with that