In the past, I would not hold contract positions overnight, and I would close them after work at night.
Now, looking at the market, the fluctuations in the cryptocurrency market are indeed mostly at night, and I often stay up until 2 or 3 o'clock. Later, I gradually developed a magical skill. Every day at 3 o'clock and 5 o'clock, I would wake up naturally for 1 minute to check the positions and then fall asleep peacefully.