One of the most common mistakes in my trading strategy was not having a real strategy when I started. I traded on impulse, reacting to every green candle without analyzing the market context. I ignored risk management, didn't place stop-losses, and over-leveraged out of pure greed. I also blindly trusted external signals, without doing my own research. I learned the hard way that a bad strategy cannot be corrected with luck. Today I document every trade, evaluate patterns, and prioritize discipline over emotion. Every mistake was a lesson, and every loss a reminder that in this game, only those who evolve win.