I feel that if there is a loss in a long contract, as long as the leverage is not high and the position is not large, it can completely be treated as spot trading. Increase the margin, set the liquidation price to an impossible price, and buy more on dips to lower the opening price. Wait for the right opportunity to break even.

Why I say shorting at high positions is difficult, the high position itself is an uptrend, going short is against the trend, and often a few candlesticks can bring it down. It's hard to grasp the timing. After a big drop, when trying to analyze the pattern, the result is that someone buys the dip and a few bullish candlesticks pull it back up. I have never seen anyone who shorted at high positions survive for a year; they all get wiped out when the market turns bullish.