What I usually do if prices are falling most specially if the coins are very low, I would buy more coins from a much lower price and your total amount of couns would then be divided; the result would be lesser losses. Read or research on google about books or ebooks on trading.
Yeah i do the same, but it is not difficult if you are just in a very panic situation like most people who is in here.. They can not even support to be in a little loss and that is the main reason of why they all are selling all their coins for insanely cheap prices.