Oh gosh my heart goes out to you
. I grew up with mom diagnosed with NPD too. And I also recognize the patterns in Sarah. That's why I just couldn't bring myself to empathize with her right now. I know why she's doing it and how narcs are. There's no person in there, they are just an empty shell. They are totally consumed by the disorder and it's detrimental to anyone living and closely interacting with them. It's incredibly complex and complicated.
I hope you can get some help for yourself. It took me 28 years to seek out for help and start therapy, and I got diagnosed with ptsd, trauma, depression and dissociation. It's terrible to the point that NPDs having kids should be a crime. Please start as soon as you can, it has helped me so much. It will be incredibly difficult but, trust me, there's freedom, love and life out there for you, and we are stronger than all the abuse we've endured
.