My understanding is that BPD is just complex trauma ie lots of trauma occurring over a child's life.

You CAN get well and you will get well. You have your whole life to work on all the things you want to change. Therapy won't make you a different individual in that the essence of you; all the good bits, your personality etc doesn't need changed but you can work on the behaviours and reactions you have if they are causing you problems. There is hope.