In this kind of market where mostly the price of every coin varies every now and then is very risky to invest on to. Holding coins for a long time is still a good way to earn profit even today because eventhough the price drops or crashes there are still times where it increases its price 2x or even higher than the highest price they had before. In this kind of market the only thing is that you know where to invest the coins that will make you rich that has good project and will benefit you.