I don't really know if this is the "worst". But general consensus from what I sense would deem it so.
Mm... being raised by a conniving, malignant narcissist father and a passive mother. Not a good mix.
Thanks to my father and the genes from his side of the family, I carry a complete monster within me that I try to keep at bay, sometimes poorly. Actively volunteering in deeds that can sublimate this, or balance this does help, from what I have seen. My monstrosity is hereditary, and being self-aware about it did help, and didn't help from time to time, because self-aware evil, from what I have seen, can be the most destructive form of evil, it lacks the banality of the blind evil that most people act upon from time to time, or maybe I am just being vainglorious. Anyway, this situation left huge anger issues and a long-term lack of empathy and my struggle with being a sneaky son of a gun consciously, or unconsciously. I was raised in an atmosphere that if I was not cunning, I'd be controlled. If I didn't push, I'd be pushed. I had an interesting childhood, mixing constant, subtle power struggles with two near-death experiences and a countryside bourgeoise family can create odd consequences. In one of them, my heart stopped but luckily the doctors electriced me back to life. In the other, my father who I came throat to throat during my lifetime saved me. Do I hate him? I used to think I did, but now, I am very indifferent about him. His life ended up in ruin, all his power and money faded away, and he is cursed to exist with my grandfather that he hates.
Hereditary, indeed.
I had a villainous, selfish and destructive mindset for a long time and it took some events for me to steer to neutral zone. That mindset, I can still hear its whisper, if I listen closely, and I think, I should always listen closely, lest I might choose to act upon it.
Everything is better now, from some perspectives.