In the big market trend of the cryptocurrency world, to avoid losses, not get trapped, and still make a small profit, the key is to prioritize stability. Never allocate more than 30% of your position, only use idle funds to invest in mainstream coins, and never touch air coins. Strictly set stop-loss levels, exit decisively if the decline exceeds 5%, and never hold through the drop. Only engage in right-side trading, wait for a clear trend before entering, and avoid guessing the top or bottom. To survive in a big market trend, stay calm during crazy market conditions, take profits when appropriate, and secure your gains. Following these disciplines will allow you to steadily profit amid fluctuations.