#TradingMistakes101 The pain of this loss was immense, but it was a crucial turning point. I learned the hard way that blind speculation is a sure path to ruin. My main lesson has been the absolute necessity of thorough due diligence. Before each transaction, I now thoroughly explore the fundamentals of the project, the team, the technology, and the market capitalization. More importantly, I realized that risk management is paramount. I have established strict rules for position sizing.