Trading when fomo on coin occurs has a very big risk, especially if we lack information about the coin so that we can buy or sell coins at the wrong time so that we get big losses, in the case of Luna for example there I think there must be a lot of people who suffered a big loss due to following the FOMO flow at that time because he thought Luna would recover quickly because of the problem without changing the coin status, but what happened was quite the opposite. So it all can indeed be an expensive lesson.
Luna was disaster - my two friend lost confidence over coins after they have see the LUNA faith.
They wished they would not have wasted their money in LUNA and keeps on telling everyone not to invest in coins. However there are other people who are happy investors in coins.