Don't panic and don't sell anything. Just hoLd. Come back few months later.
Yes don't panic just hold your coins now and wait for there increasing. Panicking it may cause to loose your investment in a seconds. It's better to patients and calm to wait cause one day the value will rise and shine and give us good profit in our investment.
I think September 21th has proved everybody: guys, you have to hold your cryptocurrencies, and very soon you will earn money on it. Be patient, study the market, and you will be awarded finally, for sure.