Holding is good in crypto but we should understand the importance of coin development only those coins we can expect growth
The best coin to rely on for holding right now is bitcoin as number one and some altcoins that has a very high rake on exchanges and coinmarketcap. Holding is a very risky investment also because no one can really tell the future of the coin, one thing about holding is that sometimes, you refuse to take profit at the point when you are supposed to take profit, and if care is not taking, you watch that profit slip off your finger for the rest of your life when you invest in coins that does not have potential.
This was exactly what made me lose $20000 during the last altcoins season, it was my first time, most of the altcoins I worked for then grew to that extent and I still kept holding believing that there would be future until most of them disappeared and the value become extremely too low now.,