You have the Scriptures on your side in this discussion, A-G. Your Godly attitude is what we all should aspire to.
I have often found it useful . . . and many counseling clients have found it useful to pray something along the following lines . . .
Lord, I CHOOSE FORGIVE ___________ FOR ________________. PLEASE, LORD, MAKE IT REAL IN MY EMOTIONS, HEART, MIND, SPIRIT AS FULLY AS POSSIBLE AS QUICKLY AS POSSIBLE.
I take the Sword of The Spirit and cut them off from any of my judgments, resentments etc. I repent of all such feelings and attitudes. I release them fully to your care and discipline as you see fit, Lord. I wish for them a full Salvation, redemptive relationship with you, Lord.
I ask you to help them learn whatever you want them to learn out of all this in your ways and your timing.
Help me Lord, to see them as you see them. Help me to release them fully to you and help me to refuse to 'go there' any more. Help me to stop dwelling on it in my mind another microsecond. Help me to focus instead on all your forgiveness, Love and mercies to me, Lord.
In Jesus' Name.
And if the enemy tempts me with an unforgiving thought or feeling again . . .
NO! AWAY FROM ME, IN JESUS' NAME. I have forgiven _____ fully and will not take up the offense again. I bless them in Jesus' Name for the fullest relationship with God possible for them. The more you harrass me with any such memories, the more I will bless them in Jesus' Name.
I want my sins buried in the sea of forgetfulness and as far from me as the east most galactic cluster is from the west most galactic cluster. So I forgive them the same extent, in Jesus' Name. I hold nothing further against them at all, ever.
Lord, please heal me of any memory or other emotional gritch related to all this, in Jesus' Name.
I forgive them fully. That settles my half with God. Amen.