During this period, I plan to write about my experience in the cryptocurrency circle. I started to get in touch with Bitcoin in 2016, so I started writing from 2016. If the 24th year is considered a bull market, then I have experienced three bull markets in 2017, 2018, and 2019, but I am still an old leeks. I hope my experience can give some reference to brothers, and I wish brothers to get rich in the cryptocurrency circle soon.