We all know that if you want to hold the coin you must have a good knowledge of his coin. So first gain knowledge about the coin then hold and if you hold without gaining knowledge you will eat a lot of big losses.
That is clear, but what is being held must be really clear in terms of the community, volume, and market power through the large number of requests, because without it all, whatever the coin will also be bad, because the day the cryptocurrency competition will be more and more.