Hi N Drew
I join
Merlot welcoming you here and look forward to supporting you along with parents here. I can't imagine the unbearable pain you feel being beaten by your daughter, as
Merlot says violence, abuse is unacceptable and taking steps to protect yourself is the right thing to do, before it comes a pattern, normalised. From what you write, it's come to a head these last 2 months with diagnosis and refusing treatment. Your daughter appears to be in denial, reacting in fear and avoidance behaviours of facing her disorder, one which is very scary for her and takes much courage to face, accept, hidden shame. It's complex.
That said change comes with us first as we learn from pinned at the top of the board
What can a parent do I remember reading this years ago understanding how the small and gradual changes I make at my own speed can help me reduce my suffering and help my DD who at the time was in crisis, hospitalisations …. diagnosed at 26. Along with other parents her I've learnt I can not fix my DD, I can make personal changes to gently help her take on her responsibility, on her way.
Drew have you considered therapy with someone who understands BPD, for you and your husband to gain a joint understanding what's happening with your daughter?
Welcome Drew, hang in here with us, there is much wisdom and experience we learn
WDx