Some people say hold your crypto, some says sell immediately that holding for long is useless.
What do you believe and practice?
I keep cryptocurrency. I have 100+ altcoins in my wallet. And I believe that some of them will significantly increase in price in 2019-2020.
what someone does is the best choice for them because they believe that what is done will produce a future.
if they sell it now maybe they don't want to lose more because the market is difficult to move, but for those who can maintain coins, they believe that in the future the coins will increase even though it requires great struggle and patience. so do your best, I think it's better to stick around and be patient the market will soon increase.