Hi susied,

Welcome to the community! I'm sorry to hear that you are struggling with your feelings about your daughter's behavior. You've taken a big step reading up on BPD and reaching out for support. Fortunately, you've found a great community for support in this. Members here really understand what you are going through. The site also has tons of resources and tools to help make things better.
What kind of support system do you have, susied? It's great to hear that you have a knowledgeable therapist. It's so important to rally support around you at times like these.
Do you have other children?
Keep posting. We're here for you.
heartandwhole