Stopping panic selling is not a simple task because whatever you do newbies will still sell at any point there is a fall-off in price They get afraid and sell because of weak hand panic at every slightest action in the market.
Beginners cannot dump coins with a large capitalization, since they do not have enough funds for this. This is subject only to whales who have large financial resources for this. But at the moment when whales start dumping coins, newcomers usually connect to it and sell their coins, thereby further reducing the cost.