It's easy to say that don't be greedy but it's actually very hard to control yourself from greediness. There are very few people that can control themself and avoid their loss. Most of people will get greedy by trading in crypto because it's very volatile and it can make anyone millionaire in very short time.
When it comes to money, everyone is greedy, money makes people lose their mind, not control themselves, the virtual currency sometimes down, should suppress themselves to think more. what