Tracking your trading performance will help you understand your weak and strong points. After analysing your previous trades, you can develop a strategy and work on those areas and how to become a more proficient trader.
I think tracking your trading performance is important. It helps evaluate the effectiveness of your strategies, identifies your strengths and weaknesses, assess your risk management.
We should always learn from our mistakes, so we need to constantly monitor our trading results, analyze losing trades and gradually adjust our trading strategy. This is the only way to improve the quality of our trading.