The old has gone and the new has come?

Dear father, today's one of those days where I feel like I've sorely disappointed you and I need you to speak to me more than ever. 

There's this bad habit that I haven't been able to kick - that is getting caught up in the moment and just complaining about someone to another person. And after that I feel terrible, because what good does it do to complain? Not for me, cos I get more incensed, not to the person who's listening and definitely, not the target of the complaint. 

I need to grow up more.