I don't know but I starting to notice as I aged that I am developing a narcissistic habit that is increasing rapidly. Maybe because I'm really consciousness of my surroundings and I always need to feel special about myself. Like I constantly keep on taking personality test and astrology and there is never a time that I don't think about myself as being special. But if I don't do it I start to become depressed unless I have an exterior stimulant like video games or food. But I also a strong humanitarian concerns so I'm not that selfish. I hope I'm not the only INFJ like this. I heard that this personality type have some connection to narcissism.