#TradingMistakes101 is a common hashtag and topic online, especially in the cryptocurrency space, highlighting pitfalls traders often encounter. It emphasizes the importance of avoiding emotional trading, such as FOMO (Fear Of Missing Out) buys and chasing losses. Key lessons include having a well-defined trading plan, practicing proper risk management (like setting stop-losses and taking profits), conducting independent research instead of relying on hype, and understanding market analysis tools. It also stresses the significance of discipline, emotional control, and learning from past errors to achieve consistent success.