Trader Bastian Keller, known as Bitbull, says emotional discipline—not predicting prices—is central to avoiding losses, arguing paper trading fails to prepare beginners for real-money pressure and warning against revenge trading. He shared the advice at TOKEN2049 Singapore earlier this month, according to BeInCrypto. Bitcoin nearly touched $85,000 last week before struggling to hold $80,000 days later, while elevated leverage and weakening spot buying heightened volatility. Keller recommends starting with small real-money trades and says his TradeMania platform is developing AI tools to analyze trading histories and flag behavioral patterns; there is no independent evidence the system improves returns.