Father eternal, giver of light and grace,
I have sinned against you and against my neighbors,
in what I have thought, in what I have said and done,
through ignorance, through weakness, through my own deliberate fault.
I have wounded your love, and marred your image in me.
I am sorry and ashamed, and repent of all my sins.
For the sake of your son Jesus Christ, who died for me,
forgive me of all that is past, and lead me from darkness
to walk as a child of light. Amen.

I personalized this prayer from Common Worship: Services and Prayers for the Church of England