The truth about crypto currency is that it is more about hodling, technically, crypto is hodling.
Most people that has been able to take profit from crypto currency trade or investment are those that have mastered the act of hodling.
Knowing when to hodl, when not to hodl is an important skill you need.
Trading is much better strategy than than holding, invest in any low marketcap altcoins for long term will result no profits and only loss, holding only applies to top coins in the market. Trading is a much better skill if you learn how to trade, there's alot of guides out there on how to trade.