Every one of us will come from yesterday's storm, inevitably contaminated with some dust and bad luck, leaving some sour memories in our hearts that cannot be completely erased. We need to constantly sum up yesterday's mistakes, but we can't dwell on past mistakes and unhappiness. Sadness, regret and happiness can't change the past. Changing time doesn't make you smarter and more perfect. If you always bear a heavy burden and feel sad for the lost time, you will only waste the good time in front of you, which means giving up the present and the future, regretting the past, and only losing the present: losing the present, how can we talk about the future! As the saying goes, "Those who regret missing the first train will definitely miss the next one." I have never wanted to make friends with the opposite sex or the same sex in my heart. No matter what happened yesterday, the most important thing is to remember to close the door behind you and learn to put aside all the wonderful achievements and annoying mistakes in the past and move on.