Say the following: “Bless me Father for I have sinned.”
Say how long it has been since your last confession. For example, “It has been two years since my last confession”
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. Amen.