The 12-hour level returned to zero and started the 4- and 6-hour level pullback. The 1-day line's downward momentum weakened, and finally received 183 (168+17), and the resistance returned to 186 again. I breathed a sigh of relief. This means that 168 is the recent low. If it falls back to 170-168 again in the future, it will still be a chance to buy the bottom.
Every time the market is very weak, so weak that you want to open a short position, hold back and divert your attention to buy spot. Usually it won't take long before the market changes.