I don't understand exactly how this anger against the world comes about. Do you feel treated unfairly? Are you not given what is yours?
Not exactly. Suppose you somehow got roped into playing a game with strangers on a larger scale. Different groups of people value different things in this game. I don't really give a fuck, but it's fun to play along from time to time. However, as the game progresses, those groups of people get more and more into what they're doing, and the barrier of entry is higher. It gets to a point where tagging along is not worth the effort. When everything around is like that, then it becomes frustrating that I'm playing the game at all. So might as well go and start ruining the game for others from a lack of a better thing to do.
Probably something close to F43. 8 Posttraumatic embitterment disorder with strong externalization defense mechanisms. Probably narcissistic tendencies. This came to my mind very quickly, but usually I don't do diagnoses before after the third session etc., so this is just a wild guess because I have to sleep now. The antidote is wisdom. A therapist can do wisdom therapy. There is wisdom even in anger. We can talk about it more or deeper another time, but better in private.
F43. 8 can be called many things and the term is quite recent and hyped at the moment. There is some critique about calling F43. 8 Embitterment disorder and it is not called like that in diagnostic manuals. It is an unofficial name that is gaining popularity. I personally think it is definetly a real distinctable disorder and should be treated in a special way. In clinical settings there are a lot of people wihh that disorder and I don't think other existing disorders describe it sufficiently.