Well, I guess you are sinless then, right?
God changes the heart to turn us to him, and in turning we choose a direction away from sin even though we are still fallen and sinful. If that doesn’t make sense to man, then his heart has not turned to God.
Do you still have the same desire to sin that you had before Christ saved you? I do not.
I don't know how you deduce sinless out of the need for repentance. Not all sin is transgression. Not all sinfulness is rebellion.
KJV Numbers 15:29 Ye shall have one law for him that sinneth through ignorance, both for him that is born among the children of Israel, and for the stranger that sojourneth among them. 30 But the soul that doeth ought presumptuously, whether he be born in the land, or a stranger, the same reproacheth the LORD; and that soul shall be cut off from among his people.
God changes the heart to turn us to him, ....
God will not do that if the person is unwilling to cooperate:
KJV Deuteronomy 10:16 Circumcise therefore the foreskin of your heart, and be no more stiffnecked.
KJV Deuteronomy 30:6 And the LORD thy God will circumcise thine heart, and the heart of thy seed, to love the LORD thy God with all thine heart, and with all thy soul, that thou mayest live.