Knowledge is power. At least to a certain degree you understand why you do the things you do. There are many people out there that have BPD and don't know that they do. They don't know what, or why they do the things they do; and go through their lives blindly.
BPD is NOT who you are. I've had a close relationship with 2 people that have BPD, and they couldn't be any different!!!
I don't know if anything I'm saying helps or matters, but at least you can recognize the monkey on your back.
I wish you lots of luck!