I use my work as catharsis. That's often the best thing that we can do, is to allow ourselves to rage because it's so rare that we get to. We're told to forgive - I don't want to! I don't want to forgive my abuser! I don't care to and I don't like that assumption that forgiveness makes me a better person. It's not authentic to me, my feelings and what I need. But everyone has their own way.
Catharsis returns us to the purpose for which were originally intended - to be called by God to do good - and thus ultimately returns us to ourselves.
When you can bring yourself to write about it one day, you will find it all less painful. It is a catharsis of sorts, but the process can be brutal. Don’t do it until you’re ready.