I have been in both and it was ineffective in fact damaging to me. Every BPD is somewhat different and so what works for one does not work for others. I was traumatized when my therapist FIRED me on the spot one day.

I am happy that it worked for you. You must be young, these therapies are very effective if you are young when you start. I was an old lady when I started. I had been in therapy for over 25 years before I started.