hi Venny,
im sorry to hear that friends and family are having a hard time understanding, being told to "get over it" can feel pretty invalidating. they probably mean well, but it is a very complicated, complex disorder, and its challenging to understand if you havent experienced it yourself.
im not sure theres any one resource that will cause them to "get it", but these might help:
Surviving a Breakup with Someone with BPD (this may explain a lot of what you are going through and experiencing, particularly page 7 where "Now that you are separated" begins, and that you are not alone in what you are going through.
How a BPD Relationship EvolvesBPD: What is it? How can I Tell? theres a ton of good information here you can kinda cut and paste. scroll down and youll find this helpful video:
https://bpdfamily.org/2010/09/video-what-is-borderline-personality.htmlin addition to this, i encourage you to lean on this board. members here have or are walking in your shoes and we understand what you are going through