Never look back unless you are planning to go that way.
Henry David Thoreau
Don’t look back. If you have an issue or an outcome that is less than ideal, learn from it and move on. Besides examining and learning from the experience, what purpose does it serve to look back, even for a moment? The most likely effect looking back will have is to distract you from the tasks at hand and delay you in your journey toward attaining your goals and your dreams.