Hi
Lizzie51 Welcome. I'm so sorry, I've been in a similar situation (2015), at my wits end, the world tipped upside down, you are not alone. I have in the past written here the list of behaviours you describe..
and its truly overwhelming and complex isn't it, where does one start! My daughter has turned it around and is managing well, I offer you hope.
Is follow up treatment in place, will your daughter engage? Does she have access to a Crisis Team?
WDx