Act of Contrition 1
O MY GOD, I am heartily sorry for having offended Thee, 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 Thee, my God, Who art all-good and deserving of all my love. I firmly resolve, with the help of Thy grace, to confess my sins, to do penance, and to amend my life. Amen.
Act of Contrition 2
Forgive me my sins, O Lord, forgive me my sins;
the sins of my youth, the sins of my age, the sins of my soul,
the sins of my body; my idle sins, my serious voluntary sins;
the sins I know, the sins I do not know; the sins I have concealed
for so long, and which are now hidden from my memory.
I am truly sorry for every sin, mortal and venial,
for all the sins of my childhood up to the present hour.
I know my sins have wounded Thy Tender Heart,
O My Savior, let me be freed from the bonds of evil through
the most bitter Passion of My Redeemer. Amen.
O My Jesus, forget and forgive what I have been. Amen.
Act of Contrition 3
O my God, I am heartily sorry for having offended Thee, and I detest all my sins because of Thy just punishments, but most of all because they offend Thee, my God, Who art all-good and deserving of all my love. I firmly resolve, with the help of Thy grace, to sin no more and to avoid the near occasions of sin.
Act of Contrition 4
My God, I am sorry for my sins with all my heart. In choosing to do wrong and failing to do good, I have sinned against you whom I should love above all things. I firmly intend, with your help, to do penance, to sin no more, and to avoid whatever leads me to sin. Our Savior Jesus Christ suffered and died for us. In his name, my God, have mercy.
Act of Contrition 5
O my God, I am sorry for my sins because I have offended you. I know I should love you above all things. Help me to do penance, to do better, and to avoid anything that might lead me to sin. Amen.
Source: GADEL.info