What you may learn from writing poetry or journalling

There was a question on Quora for ages asking if you can psychoanalyse yourself.Well, it seems unlikely to me.I think relaxing and speaking freely is hard to combine with the  attention needed  from another person who has no emotional stake in your life or actions or feelings

However you can by  careful observation notice qualities in yourself you were unaware of.{I don’t mean beginning to write poetry when 65 years old]
When someone hurts me I often seem to feel I have hurt them and I feel distressed.Yet if I write about something similar I realise I have done nothing to cause this and it is not I who need to apologise
Maybe I confuse myself with others..? Is this common?

I suppose I have found it worth thinking about. I can’t eliminate it but I can ask myself , who has done what here.Maybe I try to take the blame rather than think about whether this person is worth being friends with. That would be if it happened a lot.For we all do hurt each other now and then inevitably.But we can reduce it
And friends are friends
Is there a deeper meaning ? Have I failed to develop an ego?  If so. it is a bit late now!