Yes it's true that new investors usually get so emotional when coins dip and sell very cheap. This also affect majority of investors including the old investors. As crypto enthusiasts who have been in this space for long, we should try to educate newbies that crypto volatility is normal, so they should not always dump very cheap.
Even experienced traders are always impatient, the market is always able to shake out all the people, I think you need to properly dispose of money and comply with risk management in order not to lose their money at large spills in the market.