Most merciful God,
Father in heaven,
relying on Thy goodness and mercy,
I come to Thee with filial confidence
to confess my sins and to implore Thy forgiveness.
Thou wilt not despise a contrite and humble heart.
Bless me and receive me again into Thy favour;
I acknowledge that I have been most ungrateful to Thee,
but I sincerely repent and detest the wrong I have done,
and I desire henceforth to walk in the way of perfection
in accordance with Thy holy will.
O Jesus, my Saviour, my good Shepherd,
I have strayed far from the path
that Thou hast marked out for me;
I did not follow in Thy footsteps;
I wandered into forbidden places.
Repentant and sorrowful,
I beg to be admitted again into the fold of Thy faithful followers.
I want to confess my sins with the same sincerity
as I should wish to do at the moment of my death.
My Jesus, I look to Thee with confidence
for the grace to examine my conscience well.
O Holy Spirit come in Thy mercy;
enlighten my mind and strengthen my will
that I may know my sins,
humbly confess them,
and sincerely amend my life.
Mary, my Mother,
immaculate Spouse of the Holy Ghost,
refuge of sinners,
assist me by thy intercession.
Holy angels and saints of God,
pray for me.
Source : catholicgo.org