Welcome HopefulStill: I'm so sorry that your mom has BPD and has attempted suicide. You say your father tried to follow suit, in one instance. Are both of them on meds and/or getting some therapy? I hope your mom's recent fall wasn't serious. The article below on Suicidal Ideation, might have some helpful information for you.
https://bpdfamily.com/message_board/index.php?topic=79032.0;allYou might want to finish reading the books you have and then consider what issues you want more information on. I read the book, "Stop Walking on Egg Shells". If you go to the top of the page, where the large green banner is, you will find a section for "Tools". Within that menu, is a link to book reviews and other helpful things.
I guess my first question is - where did you start?
Most people find that by using validation and various communication skills, they can ease the strain of interacting with a person with BPD (pwBPD). The skills in the lessons are great to learn, as they can be helpful to use with normal people in everyday life.
The two links below could be a good starting point to learn some skills:VALIDATIONhttps://bpdfamily.com/content/communication-skills-validationCOMMUNICATION OVERVIEWhttps://bpdfamily.com/message_board/index.php?topic=69272.0;allOther than suicide, what are some of the main behavior problems that your mom exhibits?
I look forward to hearing more of your story. Let us know how we can help.