It doesn't get old that there will someone who would share their losses because they've bought at the top and sold at loss. It's a never ending story because there will always be newbies that cannot take their emotions when they see the coin that they've bought starts to go down.
Buying at the dip is what everyone is recommending but you shall know it on your own if you're going to look at it and all of us have proper timings on it, whichever is the good price and coin to buy.
I also have noticed that most of the newbies are get into invest on Fomo. They always fall into it and as you said they can't control their emotions. However it is always need to be more patience before enter tge market you have to choose a right moment to entry and avoid the Fomo. Remond that a good project always gives us a huge return if there is Fomo. So we need to more wise before entry if we wanna get a good profit.