O almighty and most merciful God, I give You thanks with all the powers of my soul for this and all other mercies, graces, and blessings bestowed on me, and prostrating myself at Your sacred feet, I offer myself to be henceforth forever Yours.
Let nothing in life or death ever separate me from You! I renounce with my whole soul all my treasons against You, and all the abominations and sins of my past life.
I renew my promises made in Baptism, and from this moment I dedicate myself eternally to Your love and service.
Grant that for the time to come, I may detest sin more than death itself, and avoid all such occasions and companies as have unhappily brought me to it.
This I resolve to do by the aid of Your divine grace, without which I can do nothing. Amen.
Further reading
In conversation with Andrea Tornielli, Pope Francis reflects on mercy and forgiveness, a companion for giving thanks after Confession and carrying that gratitude into daily life.
The Name of God Is Mercy by Pope Francis; translated by Oonagh Stransky (hardcover) on Amazon (paid link)