Hi! I am so sorry to hear you are going through this! My daughter was diagnosed about 3 years ago....it is a BEAST of a disorder

she has estranged herself from me, her father, her sister and her nieces, though, I hear from her sporadically (I say it "non-chalantly" only because I have FORCED myself to resume my REAL life and attempt to find some joy (the first year was horrendous), like you, I will NEVER give up! I have utilized the following that might be of some help to you? in no particular order: (this group is a lifesaver!) NAMI (National Alliance for Mental Health), I found a BPD therapist (specializes in assisting parents of children/young adults with BPD) I have read "Stop Walking on Egg Shells (oddly, at my daughter's suggestion" (very helpful) and "I Hate You, Don't Leave Me" (more of a clinical read, though, still helpful), please reach out, if you need anything

and good luck!