Every trader starts somewhere, but avoiding a few common mistakes can save both money and frustration. First, always check your slippage settings—setting them too high can result in poor swap prices. Second, verify you're trading the correct token, as fake tokens can mimic legitimate projects. Third, protect your wallet by never sharing your seed phrase or private keys, and only connect to trusted platforms. Fourth, research liquidity pools before investing by reviewing factors like trading volume, liquidity depth, and potential risks such as impermanent loss. Finally, never invest more than you can afford to lose. Smart trading isn't just about making profits—it's about managing risk. By staying informed and using trusted platforms like STONfi on TON, beginners can build confidence and make better decisions as they explore the DeFi ecosystem.