Don't look back, never look back. How often do people tell themselves that after an experience that is exceptionally good (or exceptionally bad?)? Often, I suppose. And the advice usually goes unheeded. Humans were built to look back; that's why we have tat swivel joint in our necks.
Stephen KingWhen you write you tell yourself a story. When you rewrite you take out everything that is NOT the story.
Stephen KingBest not to look back. Best to believe there will be happily ever afters all the way around - and so there may be; who is to say there will not be such endings? Not all boats which sail away into darkness never find the sun again, or the hand of another child; if life teaches anything at all, it teachers that there are so many happy endings that the man who believes there is no God needs his rationality called into serious question.
Stephen King