Forgiving someone can be egoless and a powerful thing it allows you to release any anger towards yourself or towards anyone else. I have heard people say don't Forgive but forget I've also heard to forgive and forget.  With these affirmations, you will be forgiving yourself and others.  These are powerful affirmations from a great author Luise Hayes.

Love yourself with forgiveness

The door of my heart opens inward I'm moving through forgiveness to love as I change my thoughts the world around me changes.  The past is over so it has no power now.  The thoughts of this moment create my future.  It is no fun being the victim.  I refuse to be helpless anymore I claim my own power I give myself the gift of freedom from the past and move with joy in the now. There is no problem too big or too small that can't be solved with love.  I am ready to be healed I am willing to forgive and all is well.  I know old negative patterns no longer limit me I let them go with ease.  As I forgive myself it becomes easier to forgive others.  I forgive myself for not being perfect I am living the very best way I know how it is now safe for me to release all my child hood traumas and move into love.  i forgive everyone in my past for all perceived wrongs I release them with love all the changes in life that lies before me are positive ones and I am safe.