I often lose my temper when altcoins drop sharply.
And in general, I sell altscoin at the bottom
its your fault if you loose too much because your just impatient and why the hell you would sell your coins if you know your gotta loose ? trading is only for the people who can wait and can control their emotions because market is verry volatile and prices are likey to drop or became stagnant at a longer time and you cant do nothing if the market is full of red or the coins are bleeding rather alll you can do is wait for them to increase or pump.