I was just looking at the coinmarketcap table since 2013, I was surprised in what I saw, many coins topping the charts then are now almost non-existent, we need to be careful of the kind of coins we hodl especially for long term. Most of these projects just die after the initial hype.
that is the law of nature, new projects overlap. Better, stronger will replace old projects. And also because it is the tactical change of sharks, they no longer collect and push old coins, so it dies slowly.
In order to earn money in the crypto market, you need to adapt to this, and should only hodl the top 20 coins because it is harder to die than the garbage coins.