Your brother sounds like a piece of work. I’m so sorry that you had to go through this. For me writing about family is always the hardest. It just stirs up so much unwanted trauma, at least for me. Great that you found the courage to write about him!

Now in regards to your question - yes, my mother.

She has NPD and made my childhood and adolescent rather unpleasant. I recently found the courage to write about her if you’re at all interested. It’s an intense read though.

https://link.medium.com/yaZD67zN4jb