You can not panic. Panic can lead to very unpleasant consequences, when carelessly to sell its assets at an unfavorable price. By investing should be approached wisely.
Yes, panic selling of your assets at unfavorable prices may lead to huge losses example when the bitfinex hacked my friends started panic selling even I suggested not to do so but they sold for the loss of some $50 to $100 with the intention of preventing further losses but bitcoin prices not slipped below $500 levels. Hope we will never face such kind of situation again.