If discipline in trading is not part of your strategy, then you need to clarify what discipline you are referring to. Trading strategies can vary greatly from trader to trader, but discipline is likely to be nearly the same for every trader. Therefore, I would like to know what discipline in trading is, whether it's the discipline of buying without selling or the discipline of selling after buying in the market. In my opinion, discipline is inherently part of strategy, making it difficult to separate it, as a complete strategy is when discipline is embedded within it.
Each trader's trading strategy varies greatly. Similarly, the way they trade varies, with some using fast trading strategies such as scalping and others trading in a more relaxed time frame such as swing trading. And in the use of indicators, each trader has their own favorites. My friends who also trade have different strategies for analyzing the market. One of my friends who trades in the futures market uses funding rates and other indicators. For example, observing whether the funding rate is positive or negative can be an indicator of market sentiment in the futures market to see bullish or bearish trends.
In my opinion, discipline plays a role in applying all the analysis results to the trading plan, and discipline makes a trader adhere to the risk management that they have set from the beginning. This includes adhering to the take-profit and stop-loss targets that have been set. Not getting caught up in the hype and falling into FOMO, nor becoming too greedy and moving the take-profit target to a higher price in hopes of greater profits. Therefore, discipline should be an integral part of executing the trading strategy accurately and in line with the initial plan.