It is very bad idea to sell them at the current situation if the market because i hope people purchased their coins at the very high value and now if you sell them you will be making very less based on your investment. In the current situation holding is the best strategy instead of panic about the current situation.
selling it will make you lose so you can lose it. You have to use it to invest more, but not all coins are invested, maybe it's better and safer if only a little is invested and some of you hold the coin. if the market looks good and bright then you invest again so you can get more profits. do your best, don't be easily discouraged and continue to be patient and keep up the spirit.