if that happens just buy again, if you really believe in the crypto then it doesnt care if it goed down. I like red markets only makes you gain more and more at the end if it goes up. this is just fear of the new ones and the traders.. invest money over time and let it grow, don't trade, only 5% makes real money and with the transaction fees it makes no sense anyways because losing is always easier than gaining. so just from time to time put something like 100 dollar in a coin, when it drops say 25% again and when it drops then again until you have bought in at so much price ranges it will be evarage