I am glad you are implementing the advice of the article. I suggested to do it with your close relationships, but hey, whatever works. As I mentioned, feelings are not good or bad per se. No harm in sharing them.
Not sure if it will make you feel less angry, but here is the link to the research of Dr Rachel Jack from Glascow University who was the first to conclude that the key emotions are four versus the commonly held belief among scientists that they are six.
I wish you a lot of money and a lack of The Mission articles on your Medium homepage.