When you focus on forgetting negative experiences instead of taking time to reflect on them and learn from them, you put yourself at the risk of inviting more negativity into your life, because negative thoughts will pile up, and every time you have a negative experience, you will recall all of the other times and reassure yourself that you have a bad life or bad luck. But when you learn to twist each negative event into a positive lesson and apply that lesson into your new experiences, you become more skillful at seeing the positives in life rather than the negatives.