Selling at loss it's really not good but sometimes situation that's beyond imagination can make one dump at lost but selling out of panic isn't healthy though it can be frustrating when your coins are going so low more than expected but having patience and wait for moon cold hell recover. Some do also say it's best to sell and jump into trading coin so as to recover but what if the coin dumps? Best is to buy a good coin so you can be sure of increase someday.