Hi Flamenco,
Most of our kids/adult kids with BPD have a skills deficit coupled with low distress tolerance. The absence of healthy coping skills leaves a gap that they fill with unhealthy coping skills like drugs, alcohol, projection, etc... .
Do you think your d needs to get treatment for alcoholism?
Has your d had any skills training to help her learn to cope with her intense emotions and learn to problem solve? If so, it can really help if she has someone modeling these for her and encouraging her to use what she learned in the past. We started with validation of feelings and slowly added asking validating questions. The validation helped her soothe the intensity of her feelings that come from her emotional mind and then asking validating questions helped her to engage her reason mind while keeping all the responsibility for a problem and it's solution on her.
Would her sister be willing to be her validator alongside you? If so, I recommend the book "I Don't Have to Make Everything All Better" by Gary and Joy Lundberg. It is not a book about BPD, and it is all about the power of validation and validating questions.
Here is a link to the book review that we have here on the site and ordering information.
https://bpdfamily.com/message_board/index.php?topic=128027.0We have a great deal of information on validation here on the site. Here is a link to get you started:
Validate the ValidWe are happy to help you as you learn and practice new skills to help you and your family.
lbj