For trading you must have appropriate skills and adequate experience to observe the regular rise and dip in the price so that you can buy and sell accordingly in order to get good returns.You must be daring enough and should be ready to deal with losses also because trading involves huge risks.On the other hand holding just involves buying a coin of your interest and holding until you find a good price to sell.Holding is the simplest way to earn good profits but if trading is done wisely then it can provide you with better returns than holding.So it's totally your choice,whether you want to be a day trader or you want to go for long term investments.