You have to believe that the coins you invest will definitely have more value in the future.
Trust is needed in investment, but everyone has different interests. Market conditions are also not stable at this time. This can encourage each holder to sell their coins immediately, and the most urgent is the reason to fulfill their needs.
deteriorating market conditions have become one of the reasons why they sell their coins because there is a sense that if the price will goes down the worse, for me when I get a reward from a bounty I will immediately sell it because I was traumatized by holding it too long and no increase to the price of the coin that I hold.