Hi Willow moon,
a big for you. It is tough to deal with anxiety and it is touch to deal with a pwBPD. Tacking both together can put a strain you yourself.
Considering that right now you are afraid to even speak up makes me sad. You probably can benefit a lot from working through the validation workshops and just try to practice validation in communicating with other members here on the board. Build up a little confidence. Once you get a better handle on it tackling the family will be a little easier.
What do you think?

,
a0