Hi Ozzy,

First off, it's great to hear that you realized and acted on the need for finding a professional to help guide you in a time of need! Your story is a very familiar one here, and one that resonates with me as my sisters have turned a blind eye to my own mothers obvious PD issues.
I'd say you are on the right course in learning tactics that begin to look out after your best interests. After all, what good can you be to her if you are so worn down that you don't even know which way is up?
Dealing with a loved one with BPD is very mentally, emotionally and physically draining.
To the right of this board you will note some basic tools and some lessons you will find valuable in your journey. Many here have learned that you cannot change your person with BPD (pwBPD), but we can regulate how we react to and communicate with them. Combining a good working understanding of the illness with the tools and communication techniques you will find here can certainly help improve your circumstances.
Do your daughters at least recognize that what you all are dealing with is not "normal"?
Would your wife be open to counseling?... .I don't suggest you mentioning BPD... .more along the lines of "hey, this therapist can probably help us with our communication type approach"... .
You've found the right place for knowledge, understanding, and sharing. I found sharing here to be very therapeutic, and I saw that the more I shared, the more I got in return. So feel free to share any thoughts, feeling or questions anytime! We are here.