Hi SonandSister

Welcome to BPD Family. While I'm so very sorry for what has brought you here, I'm really glad you found us.
I can relate to the pain of being cut off from a grandchild, though the "cut off" from my 4-year-old grandson (GS4) lasted only three months in my case. The grief is overwhelming, isn't it? I hadn't cried like that, wailed really, in my whole life.
Firstly, I want you to know that you are not alone. There are many parents here who will relate to what you have written and we are all here learning, and supporting each other.
Secondly, there is hope for a better tomorrow. Most of us come here in crisis, like yourself, and many of us have learned ways to cope, and to work toward reconciling with our estranged loved ones. It will take a lot of work and learning, but the benefits are worth the time it will take.
Having just one person with BPD (pwBPD) in one's life is difficult, and you have two, a sister and a son. It's no wonder you feel depressed and hopeless
It's great that you've found a NAMI support group to attend and I think finding a therapist for yourself is a great idea. It will be helpful to find a therapist with lots of experience with BPD as the dynamics in these relationships are more complex than the average relationship.
Allow me to point you to a good place to start on this site:
How to get the most out of this siteThere are many lessons, tools, articles, and workshops here to help you navigate this difficult journey. Plus, the collective wisdom of fellow parents walking similar paths.
Look around, ask questions, keep posting your feelings and struggles. It really does help to talk about what we're going through - and you've got a lot on your plate. We can support you, you've made a brave first step by posting.
You've probably already noticed, but there is also a board for those who have a sibling in their lives wBPD. It's located just under this board, it's called Parent, Sibling, or In-law Suffering from BPD. It's great you and your sister are faring better than you had in the past and the Parent/Sibling/Inlaw board can support continued growth in that relationship.
Here's a link:
Parent, Sibling, or In-Law Suffering from BPDDo you have any contact at all with your son?
I look forward to getting to know you better and how we can best support you. Please feel free to ask any questions at all as you get comfortable here. We are here for you, we are listening.
Again, welcome. I'm glad you found us
~ OH