If there is a medicine for regret in the world, I think everyone will fight to get it, but the reality is cruel, and it turns out that there is no medicine for regret, so I can only rely on my writing to change it. If I hadn't done that at the beginning, if I had decided this way, if I had listened to the adults, if... There are a hundred thousand whys, why not a hundred thousand ifs. This is my first time writing an article, and I hope everyone will criticize me!