Crypto world learning experience:

1. From 0:00 to 1:00 every day is the easiest time for price spikes to occur. So before I go to bed at night, I usually set up my buy low and sell high orders in advance, basically just lying there waiting for the system to execute the trades, and sometimes I really do wake up to find that trades have been executed automatically.
2. The key time period for me to determine the direction of the day is between 6-8 AM. The logic is simple: if it has been falling from 0-6 AM and continues to fall during this period, the day will likely rise, which is a typical entry/supplement opportunity; if it has been rising from 0-6 AM and continues to rise during this period, then the day is likely to fall, which presents an opportunity to exit.
3. Pay special attention at 5 PM, due to the time difference, that's when Americans are just getting up and starting to move the market. Sometimes sharp rises or falls happen at this time.
4. The so-called "Black Friday" is not completely metaphysical; historically, there have been a few instances of sudden drops on Fridays, but not every time is accurate. It serves as an auxiliary signal, not the main logic.