FOMO when it's going up and you've missed the train... but then you buy and it dumps. Happens many times to all of us

If you've missed the train, don't run after it. Wait for the next one (next dip).
FEAR OF LOSING you're panic selling and then it pumps back up.

Warren Buffet might be a crypto FUD-meister but he's right about getting greedy when others are fearful and getting fearful when others are greedy.
GREED this is the trickiest of all emotions. Most humans are greedy. It's our nature. And yet most will tell you they're not greedy if you ask them. I am greedy, and so are you. In trading or investing, we realize we've been greedy only after losing money. There is no easy way to learn this lesson but if you follow the two rules above you won't let greed run the show.
Thank you for this, your emotion is your main enemy in doing trading, because if you can't control your emotion, you will get lost. It is the best to control it, specially for being greedy and fear of missing out. Always remember in your self, do self research, don't trust other people in crypto world specially in trading.
Emotions can really be hard to control when you see yourself you had lost an opportunity to profit.
I was up to buy NEO today after seeing the market had green, price of NEO was just $32 today before it goes $37, I'm surpise that it suddenly grow after just an hour while my deposit transaction weren't confirmed yet. I decided not to buy instead unless it dips back to about $34 or so. This I think I have controled my emotion.