FOMO can be extremely heart wrenching.  I've learned my lesson in the past by selling too early and the thoughts still linger with me.  I prefer to sell my stack off in portions so that if the price keeps rising I'm not depressed.  I know its cliche but it's better to just hodl long term because thats the best way to get guaranteed gains.  The crypto market is extremely hard to time and trying to buy the bottom or sell the top will be a game of luck.