Have you read the book "Overcoming Borderline Personality Disorder" by Valerie Porr? If not, I think it would be a very good read for you; it's my BPD "Bible" (has a very good Index in the back where you can look up the issues you are dealing with, though reading it all is the best thing to do).
I ask this, because several of us on this site--including me--have benefitted from using this statement from the
Overcoming Borderline Personality Disorder book. It's found on page 331, and she calls it an
"
Acceptance-Acknowledgement Declaration":
I never knew how much pain you were in. I never knew how much you suffered. I must have said and done so many things to hurt you because I did not understand or acknowledge your pain. I am so sorry. It was never my intention to cause you pain. What can we do now to improve our relationship?This is the kind of statement that could help you open up a door with your daughter to better communication with her in a way that won't hurt your own feelings anymore. This Workshop could be very helpful to you right now, to help you figure out how to navigate a relationship with her:
How do we become more empathetic to the pwBPD in our life? That Workshop has saved my relationship with my (non-BPD) son and his wife (who has, at least, BPD traits)

One of the best communication techniques to use when dealing with our BPD loved ones is related to Validation, and is about using
Support,
Empathy &
Truth, and is found here:
COMMUNICATION: S.E.T. technique. This is the best skill I've learned since finding this site, and I not only use it for communicating with my BPD loved ones, but with
everyone in my life, actually.
And one more thing that I have found that has made a VERY big difference in how I figured out how to deal with my BPD loved ones is this:
Radical Acceptance for family members... .When I was so tangled up in their feelings about me and their words to me, Radical Acceptance of their disordered thinking/feeling helped me to detach from their treatment of me and see the situation as it really is: it's more about
them, and not
me--it's about their disordered feelings/thinking, and I don't have to feel guilty about my own feelings.
You're in a tough, stressful and difficult situation, Eyeamme, but keep reading all you can on this site, and posting your questions about the difficulties you are having with your daughter. You will find things will get better as you learn more and apply what you learn... .Can you let us know what you think of the information at those (or some of those) links? Saving yourself in this whole thing is really the perfect strategy, and the links I've given you can really get you onto that road