Letting go isn't blocking memories or thinking sad thoughts and doesn't leave emptiness, hurt or sadness. Letting go isn't about loss and it's not defeat. To let go is to cherish memories, and overcome and move on.
"Change is inevitable. Your personal and spiritual evolution will always be seen as a betrayal by those whose values you abandon. You have a right to change your values, beliefs and ideas. The discomfort you feel when you attempt to change is just the social control that surrounds you becoming more obvious and bearing down on you. There is nothing more spiritual than freedom and it is very spiritual to violate old beliefs for new values." — Bryant McGill