It seems that until now, some friends still can't tell the difference between the left side and the right side, it's not about going long on the left side and short on the right side... that's not the logic. Let me clearly show you the difference between left-side thinking and right-side thinking with a diagram...

Left side: Always trade against the trend, but if correct, you have the best entry points, which highly tests market intuition and experience. The win rate is not high, relying purely on risk-reward ratio.
Right side: Follow the trend, and when there is no strong single-sided move, in ranging markets, it often results in buying at the top and selling at the bottom, or encountering false breakouts and false breakdowns. But overall, the win rate is much higher than the left side, though the entry points are not ideal. Without a major trend, it's hard to capture deep profits.
There is no superiority or inferiority here; each has its own techniques and challenges. Both the left and right sides have experts. There are also many optimized versions of the left and right sides, such as doing the left side but waiting for key levels not to break down, then entering after a bullish candle, which is somewhat center-left, or doing the right side but waiting for a breakout at key levels and then confirming with a pullback before entering, which is somewhat center-right.
There's no need to worry about whether it's left or right. If your current trading is consistently profitable, just keep doing it.
Trading is about maximizing the abandonment of emotions and mechanically replaying the process. The biggest mistake is wanting to learn everything but unwilling to go deep into any of it. Today, you look at the left side bottom-fishing for big gains and want to do the left side, tomorrow, after seeing a breakout on the right side and chasing the rally into the main upward wave, you switch to the right side. This kind of behavior will likely cause both longs and shorts to get burned...