Buy books. Because I was super fun when I was young, I didn't get into graduate school or lecture, but I was always good at it. From junior high school to now, I basically buy a lot of books every year, and the reading volume is about 100. Now everyone has less time to read paper books. I recommend you to read books on WeChat. The mode of changing book money during reading time is very humanized. It will take about 10 months from April last year to now.