Act of contrition

O my God,
I am heartily sorry for having offended You
and 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 confess my sins, to do penance and to amend my life.