Its because falling of market is just s normal thing in the world of crypto currency thats the gsme in crypto currency hold if its in a down trend and sell if the market is bluish. Buy if the price value is low and sell if the value of your coins reach its higher price value. We can't control the high and low of the market but we can  get lots of profit by it. Hodl is key to a higher profit and panic selling makes us lost.