The best way to overcome your "trauma" is to pray, lay your burden at the feet of Christ and ask him to bear it. And if God will not bear it for you - then ask God for the strength to bear your cross. Then pray God to deepen your faith and ask God to send you the grace to be a better person to serve him and those around you.
I put "trauma" in quotes not to imply these negative feelings and experiences are not real and difficult - but because "trauma" is a psychological framing of a spiritual problem.
Pray these things regularly and God will probably remove this "psychological" problem - unless these feelings are serving some other of God's purposes. In my personal experience "psychological" difficulties that I had in the past were lifted from starting to pay attention to my spiritual life. The deeply spiritual people that I know don't suffer from "psychological" problems, and the people I know who do suffer from them are all atheists. God never lifts all burdens because suffering is necessary to be deepened spiritually - so it might remain.
"Psychology" makes you focus on yourself exclusively. Your "psychological" problems are defined as something broken inside of
you that
you must solve by looking into
yourself. It is almost like the sin of pride manifested as a medical diagnosis. The more you engage in this framework the more self focused you become and the problems get worse.
The answer is to turn outside yourself - oriented to not just material reality - but something larger - God. So even in the unlikely situation where prayer doesn't completely lift the "psychological" symptoms - they also matter less.
A person who is primarily focused on themselves will suffer from psychological problems mostly, or from things like envy. A person focused more on others will suffer more from problems out in the world - how to make money to send your kids to school, worry that those you love will have problems, worry about the state of the world etc. A person focused on God will still experience suffering from these causes to a more limited extent because their focus - what is important to them, is neither in the internal world, or in the material world - but in heaven. Nobody can be completely detached from self and world in this life. But the extent to which you can develop spiritually makes burdens of self and world easier to bear.
Psychology is also extremely manipulative. 15 minutes complaining about crime -> BPD, 60 minutes hyperventilating about the trauma of having heard "the n-word" 5 years ago -> very healthy and normal, 60 minutes complaining about white supremacy -> very healthy and a well developed moral understanding, 5 minutes talking about jewish supremacy -> dangerous psychopath, report to police for "red flag" swat raid.
"Psychology" was used explicitly as a tool of political repression in the Soviet Union.
en.wikipedia.org
What is currently a soft social manipulation will soon be used here in the same way.