Are you feeling stuck in trading due to your strategy? The person you are thinking their strategy is working, may have a strategy that is not sustainable. While it is important to be able to unlearn and learn something you should be able to understand also sometimes that your strategy is not working because you have not gone deep enough in the mastery of it.
If a trader experience such then he should consider doing other things or keep courage of still continuing till positive outcomes.
I believe keeping courage is the way to succeed in trading because almost every trader came to some point where they felt stuck in trading and for some of them what helped them through was the motivation they got from trading with others, others is the encouragement from their mentors etc, I just feel that if you want to become successful in trading you must be ready for any challenges that come, you must be ready to fill stuck to make progress.