I've been analysing, dissecting, journalling my upbringing for the past 10 years and have made substantial progress I would say. But mostly on a cognitive level and on a level of being able to understand that it was not normal/healthy. I'm not so sure about the level of emotions / truly internalising. I realised over the past year that I cannot fully heal alone, so I finally looked out for therapists (after pushing it away for months). Many books/articles/videos/podcasts about psychology, narcissistic parents, CPTSD as well as discussing everything with my siblings (we are 4) have helped validate my/our feelings and enabled me/us to understand. I've already read several books other commenters suggested. On a deeper level I still feel a bit broken, low self-esteem, passive / somewhat avoidant, daydreaming about being a hermit in a forest, full of self doubts, unsure who I am, etc. very often.
I hope therapy will lead to some breakthroughs on that level and, yeah, I will make sure I'll try to find a good fit.