Hi Flamenco,
Welcome to the site and the Parent's Board! We are glad to have you here.
The blaming and projection, rages and low level coping (drinking) can really cause us to be in a place of uncertainty.
There's a lot to learn about how to handle these kinds of situations. It's important to understand what internal processes are causing the behaviors. Have you gained an insight into the disorder? Is your daughter diagnosed with BPD and if so how did that come about. How old is your daughter?
I don't want to just answer your question with questions so I am including a link to some info on Boundaries:
If you click the link below it will take you to some things to consider and personalize for you and your situation.
Communicate Boundaries & LimitsThe links in blue will take you deeper into the understanding of Boundaries and help you make a plan to set your own boundaries.
Come back and ask questions... .we are here to help you learn and support you while you do!
lbjnltx