0 my God, I am heartily sorry for having offended You. I detest all my sins because I dread the loss of heaven and the pains of hell.
But most of all because they offend You, my God, Who are all good and deserving of all my love.
I firmly resolve, with the help of Your grace, to sin no more and to avoid the near occasions of sin.
Amen.
Jesus, Son of God, have mercy on me, a sinner.
You can turn this into a litany after praying it a while by changing "Son of God" to some or all of the following:
Lamb of God
Bread of Life
Light of the world
Prince of Peace
Emmanual
Savior of the world
Redeemer of the world
in Your Sacred Body
in Your Precious Blood
in the Most Precious Sacrament of the altar
on Your Cross as King
