Every time there is a decline, you can place orders in batches at the "second support" and "third support" levels on the daily candlestick chart in advance. Generally, after breaking through the first support level on the daily candlestick chart, there tends to be a pin bar rebound, and it's difficult for the price to drop directly in a solid candle.

Then, I'm not suggesting you place a 100X order just sitting there; it's still low leverage contracts or spot trading, equivalent to taking a small risk for a chance at a sharp rebound.