Greed is human nature so we can't avoid such behaviour especially if you are chasing high profits. If you are so deep in trading, you can't avoid being emotional. But from time to time, you need to contemplate on what's going on so you can keep track of your goals and not be stuck on a specific situation.
Making business should not be mixed by emotions, the goal is to make profit not to attach feelings. More importantly, trading in crypto with its volatility. We should think about what's the best move to make not just blindly go with the hype, it will only cloud your decisions. And being greedy is one thing, a trader should know when to sell, yes it takes experience but it will be surely helpful in the long run.
Riding the hype is usually the common mistake of crypto users. Because most of the time you will be trap in a hype and ending up holder of worthless tokens or coins.