Found this story interesting. I was a very disagreeable teen and still am as an adult.
Disagreeable teens tend to grow up into disagreeable adults. A 10-year study finds that disagreeable teens often have no awareness that their behavior is harming their relationships.
In my early 20s, I did hold the view that everyone else was the problem. By 25, I mostly lost that view. I am still disagreeable, but I know that it is all me and in my head.
And I have poor relationships still because I do not really wish to inflict it too much on others. It is exhausting being nice. Between being nice enough to not get fired from my job and navigate society, there is not enough willpower capacity left over to attract and maintain a close relationship.