My journey with bpd is confusing. I had a period of isolation, that had helped me discover how it is to "feel yourself, feel real" and my sense of self was awakened. At that point I really didn't feel like I had bpd. But overtime I couldn't isolate myself and I became borderline again. 
I noticed for me at least, most of the symptoms and bpd issues all go back to having a lack of identity or better yet,  a weak or nonexistent sense of self. How can we not focus on others and jump to conclusions of others and rather cone t with ourselves.? 
How can we gain a sense of self? How can we forget about all the chaos "outside" and focus inward?