How to write a story about a boy who wants to chase the girl upstairs?

1. When I was a child, I hoped that I would grow up quickly. When I grew up, I found that I had lost my childhood. When I was single, I began to envy the sweetness of my lover. When I was in love, I missed the freedom of being single. Many things always feel good when they are not obtained. After getting them, we begin to understand: when we get them, we are also losing them. 2. Don’t say it, you will still miss them after you leave; don’t say it, you will still be friends after you break up. If you leave a place, the scenery no longer belongs to you; if you miss a person, that person has nothing to do with you. The falling flowers are intentional, and the flowing water is ruthless. From the moment I turn around, my happiness has nothing to do with you. 3. Memory is like water poured into the palm of your hand. No matter you spread it out or hold it tightly, it will eventually flow cleanly from your fingers drop by drop. I forgot which year, month and day I carved a face on which wall, a smiling, sad face staring at me.