Reddit reviews Surviving Manic Depression: A Manual on Bipolar Disorder for Patients, Families, and Providers

Having spent an entire year on a psychotic spectrum detail in 2014-15, and being intimately familiar with psychotic bipolar I as well as the schizopherniform disorders, I have to suggest that trying to take responsibility for the behavior of people with transient psychosis is beyond the capacity of most professionals, let alone those who haven't been through extensive and intensive post-graduate education and training. The very best you can do is a) do what you can to make sure she's on the local social services radar, b) stay on her about taking her oral meds, and c) see if they can get her to go on depot medication.

I would also get a copy of this book and this book... and read them cover to cover.