I shared all my post if anyone wants to read them. I am diagnosed with NPD and BPD clinically as a male. Those are some of my insights from my experiences and what I have learned to deal with things thus far.

What I will say last is personality disorders are simply a collection of dysfunctional behaviors and coping mechanisms. The goal is continue to work towards having more adaptive behaviors not "cure" oneself. One piece at a time gradually reducing the severity of the symptom. Let us say the issue goes from a 8 to a 5 is good

This photo isn't very scientific but it gives you an idea of what I am talking about. There is no medication at all for any personality disorders such as NPD, BPD or ASPD as they are not so much chemical issues but behavioral issues unlike many other disorders like bipolar which do have meds or schizophrenia

That means though that there can be a lot of improvement with self work. Just it is attempting re-route behaviors you have since childhood as your entire childhood and adulthood is like going thru your own school system of life developing coping mechanisms, behaviors, reactions to protect self and seeing you believe works for you. The manifestation of these when they are overall dysfunctional is that you end up fitting traits for a personality disorders.

The only things that can be "born with" per say is type 1 psychopathy which is more genetic than type 2 which is more developmental. There probably is some type of genetic component but that is less of the big picture than behavioral training, it's only a piece of the puzzle.