It's important to be patient, but how long? As long as i have coins which i trust, i have patience. But this is not the case for low-value coins that are worthless.
Save our coins with a long time sometimes makes us bored and want to sell it, but believe me, if the coin is a potential then hold it is the best solution for long-term investment, because potential coins are always there will add new features in the future which make the price going up.