This is a process and like any skill it is learned over time, if you are jumping into the market out of FOMO this means that you are not really confident on your skills as a trader, as you are letting the market to influence you very easily, and the best way to counter this tendency is very simple, you need to improve your skills as a trader, as such you need to read as much as you can about trading, paper trade the markets and refine your strategy, and if you do this for long enough then you will eventually lose the desire to jump on the first coin pumping you see.
such attitude can be found mostly in newcomers in this market. as they have the notion that they can easily get profits from this market, being impatient is one of their mistakes here. but throughout the years, as you gain more experience, you will have more insights on what to do and not what to do in this market. reading, actual trading will help you gain more knowledge on what to do with your trading activities.
also, thru time, you will have better grasp about new projects and how they will possibly perform in the trading market.
You are right but it is necessary newbies learn this lesson as soon as possible, and this is because the longer they take to learn it the greater the chances they will make a mistake during that period of time, also the mistakes that newbies make are way bigger than the ones they can make once they get more experience under their belt, however many newbies refuse to do so or they learn from dubious sources, so by the time they learn those lessons the losses they have accumulated over the years are almost impossible to overcome.