You can never forgive yourself without forgiving others. Forgive others to find and create peace in your soul.
It is impossible to find peace in the world if we can't create peace within ourselves.
You think that peace means that no one will fight. True peace is when you create peace within yourself leaving no one to fight.
You may not be able to find peace until you create it inside your forgiving mind.
Create the kind of peace in your mind that you want to see in the world.