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.
Feeling stuck in other areas of life too, not only in trading. It mainly happens too in the other field you may be doing newly, it may be happening well with others that are doing the same thing with you but it seems yours not moving forward, that feeling drained heavily which causes decline in self confidence and balance. If a trader experience such then he should consider doing other things or keep courage of still continuing till positive outcomes.