Well, its given already, FOMO will only make you attach longer to your bets, until you find no longer in control of yourself and your emotions, because you are already busy hunting for bigger profits.
Newbies may fall for this but experienced gamblers have known it well already, but some gamblers still fall for it due to their endless hope to keep winning from their bets, believing that if they continue to bet longer, profits will come as if their due for a big win.
I don't know why will any sensible person will want to do fear of missingout when there endless of opportunities in the market that you can make plenty of money as much as possible. If it's about making bet, there are open opportunities and if it's cashout out, it's a useless thing to even try. Before one should start gambling, make sure that the money you want to use for bet is not money you need so you don't be chasing these things, it makes you do things you shouldn't.
If you are going to gamble, do it because you want to do it and do what you want not because you are chasing another thing, you can gamble because of money but gamble because you weed money to take care of somethings, this kind of mindset makes you want to regrets gambling when you later realize some of the mistakes that you have done over the years with gambling if you have not become addicted by that time.