First you should not browse in social media that tackles negativity of cryptocurrency because it will affect your decision whether you hold or sell your coins, secondly you should not sell your coin if the price is in bottom you will just lost double amount of money from doing it, lastly you should not worry and keep investing when the price is in dip.
That is a careful opinion. Always reading negative news will make our mindset change and ultimately will not invest in cryptocurrency.
So what we have to do is continue to look at the situation of cryptocurrency development and try to avoid seeing negative news that is related to the current price decline.