There are some things that I'm not interested in talking about. I don't believe talking about our problems is cathartic and doesn't "purge" unwanted emotions. It can help you understand why things are the way they are, which has its benefits, but I've been through that already, and rehashing unpleasant past events does me no good, whatsoever.
Some people have so much shame in their lives that they won't talk about everyday things like what they do or did for a living or their level of education attainment. I've known several people like that.
There are things in life we have control over and things we don't. I like to think that I did what I could to make my life better and to accept what I was unable to do anything about. But that's total B.S. I often ruminate about things I had no control over and wound up on the losing end. But I don't want to talk about it any more.