A trader / investor must not panic, because the panic is friendly to losses. For example, the price of bitcoin dropped suddenly and then panicked and took the attitude of selling bitcoin, even though it was not long before it rose again. Giant class bitcoin players are playing, creating a situation that makes prices fall so that bitcoin owners from around the world panic, and at the same time sell to avoid greater losses. They don't know, this is a game made by large-class investors whose games can shake the price of bitcoin.