Last 2 days I bought for about some cheap coins and it went down for about 5% or something and I decided to sell. And now, I am at full regret that all of those coins are now up for about 20%. My lesson for that is to be patient since the market was down for some day and it will always go back up.
LOL, man, 5% is nothing on cryptomarket. 20% is not big result too. You should make some order for fixing your profit (+25%,+50%,+100%) and forget about it.