I found this prayer for Trinity Sunday a while back in one of Tom Wright’s books (New Tasks for a Renewed Church).
Father almighty, maker of heaven and earth:
Set up you kingdom in our midst.Lord Jesus Christ, Son of the living God:
Have mercy on me, a sinner.Holy Spirit, breath of the living God:
Renew me and all the world.
Paul
AMEN! Hope all is well with you and yours mate.