in trading we should not be greedy and must be in accordance with the initial plan and target, I agree with this because if we are greedy we can lose. the crypto market is very volatile and sometimes does not match our plan and can even be higher than the initial strategy but if we are greedy sometimes the price suddenly drops and we lose the opportunity to make a profit.
When trading, it is crucial to have a plan. A trader can control their greed if they have a plan and follow it. Greed can still lead a trader to ignore the plan and trade based on emotions rather than discipline. When a trader is constantly moved by impulse, he will struggle to make good use of his trading profits.
The more he profits, the more he becomes excited and wants to trade in order to increase his gains. No amount of profit can satisfy such a trader, and he is likely to lose everything because, as you mentioned, the market is volatile, and a small change in the market graph can affect his profit.