Fear always make investors and traders to miss calculate there decisions and doesn't matter how far there knowledge and skills are develop to trade and earn profits with fear they will never take right actions and make the best out from the moment so no one should let there emotions interrupt there judgement which is really bad specially in a market like cryptocurrency
Professional that have been working with the cryptos and live thanks to the trading, will never have this fear. Only a newbie, who does not understand the market feels it.