What are the best strategies for Zhang Heqing to maximize his profits in the digital currency market?

Zhang Heqing wants to maximize his profits in the digital currency market. What are the most effective strategies he can use to achieve this goal? How can he make informed investment decisions and minimize risks? What are the key factors he should consider when choosing which digital currencies to invest in? How can he stay updated with the latest market trends and news? How can he manage his portfolio effectively to optimize his returns? What are some recommended trading techniques and tools that can help him identify profitable opportunities in the market? How can he effectively manage his emotions and avoid making impulsive decisions that could negatively impact his profits?