Study the growth statistics for the year and see that the price of bitcoin is growing. Do not look at the month, but look at the year. So the situation is not entirely bad as it seems, but who bought altcoins before 2017 remain in big plus.
Yes we eneed to put basis on the past few years in orser for us to avoid being panic sellers and loss. We already experience a huge dip before so it is not new to us . We can all loss on doing panic selling so let's hold and wait for the right time to sell because being panic can lead us to loss an amount of capital or maybe profit on the feild.