Yeah. Dont do panic selling. Its a good sign that bitcoin price is decreasing because the result of is a bigger price/Higher price.
Panic selling is not a solution at all of any problem whether the coin is increasing in value or dumping hard. You should never ever sell your coin at a prices which is less than the price at which you bought it. The panic selling with bitcoin is so childish and absurd because this coin is all the time increasing in value and if it dumps for some time, you should stay patient as much as you can because patience is a virtue.