Hold is advisable depends on market situation. Holding coins is good if the market is down but if the market is normal and keep increasing much better to hold it in a short time to make more profit.
Yeah adjust to market conditions and situation, not always holding is the right choice, especially if the market situation continues to deteriorate and prices will continue to fall, maybe holding is a bad idea and selling a good idea and you can buy it at a lower price, which most importantly adjust to the situation dude!