When learning trading, you need to learn the correct direction to enter the market, the right place to set your stop loss, and the methods to take profit! This is one of the essentials! Second, you need to learn how to respond with strategies when the direction is wrong, so you can trade long without fearing a drop and trade short without fearing a rise. Third, you need to learn how to lock in the maximum loss and the methods to get out of a bad situation! Trading has never been 100%, only by coordinating our response strategies can we minimize losses when things go wrong and maximize gains when things go right. Knowing when to take a heavy position, for example, two positions for trend-following trades, and when to take a light position, such as when using 136 for counter-trend trades. Knowing when to lock in unrealized losses means forgetting to set a stop loss when you are in an unrealized loss situation! This is something we must master in trading, rather than forgetting the core principles and being busy with trivial matters!