9s, childhood emotional neglect, parents with NPD

I've been on a huge self-help kick for a few months now. I'm not sure if I'm reading too much into it (probably) but I keep finding articles like the following two that resonate strongly with me.

Do other 9s identify a lot with these two articles? (have to search in Google due to my low post count)
We Have Kids: The Long Term Effects of Childhood Emotional Neglect
Psychology Today: 10 Signs of A Narcissistic Parent

I'm starting to wonder if I even am a 9 or if the way I am is a result of the way I grew up as much as it is a result of my inborn personality and perspective. I read these two articles and start nodding when I really think back to my childhood. My dad in particular meets almost all the requirements for NPD and to this day he still tries to control, guilt trip me, use me and constantly beg me for reassurance.

I associate strongly with a lot of the aspects of type 9... I've looked into Myers Briggs and got ISFJ as my type but none of that has resonated with me as strongly as type 9. But, am I reading into it too much? Is the enneagram a reflection of life experience or something inborn?

Interested in other perspectives...