Thank you for sharing. It must have taken a great deal of bravery in admitting all of your past traumas.
Many of us who have been diagnosed with BPD have felt relief for finally having a definitive label to our behaviors and desires, followed by a hopelessness that there is no cure. I was left depressed for a long time "knowing" that I will be this way forever. Fourtunitly there is medication that can help to stabilize the moods somewhat and help our emotions return to their base line faster and there is DBT wich can condition our thinking so we no longer see everything in black and white. What I'm trying to say is that there is hope.
It is an unfortunate that because our mental and emotional wounds are not visible they become marginalized or ignored by those unaffiliated by similar wounds. My advise is to find a support system whether online or in real life that you feel comfortable talking to, and don't discuss it outside of that support group unless asked.
There is an abuse sub forum here. Sharing or even reading what others have gone through can help tremendously. Depending on were you live there may also be Al-Anon groups. This is their site:
Al-Anon. It may also help if your therapist can get you into a group dielectric therapy setting.
I won't lie, for most of us BPD has been and will be a life long struggle but I've seen many here who have minimized the symptoms and go on to lead a relatively happy life.
I wish you luck and if you ever need someone to talk to feel free to PM me.