You think you’re afraid of losing money.

Actually, what you’re more afraid of is that someone else is buying in after a crash—while you don’t get on the train.
So the more the market falls, the easier it is for someone else’s moves to throw off your timing.
When others add to their positions, you’re afraid of missing the rebound;
when others cut their losses, you suspect it will fall even more;
when others share their profits, you feel like you bought too little.
A truly mature trader is, in fact, very calm during a crash.
How much to buy, what level to buy at, and where to set a stop-loss once it drops to—he or she has already figured it out.
Other people’s position sizes, costs, and risk tolerance have nothing to do with you.
The market won’t rebound early just because you’re anxious, and it won’t mean you have to follow the crowd and place a bet just because someone’s bottom-fishing.
Stabilize your emotions first, then manage your positions.
Many times, the trend will come back—but if you blow through your principal because you let FOMO disrupt your timing, you’ll have a hard time getting back in the game.