Emotions emotions emotions! Impossible to get rid of them... maximum you can do is to learn to control them. Sometime I make the same mistake even though i'm not a novice trader. But i'm still working on myself 
Well said! How long have you been trading, and have you traded anything other than crypto?
I've been trading FX before (mostly EURUSD and GBPUSD) for approx 2 years, and then moved into cryptos maybe half a year ago (maybe a little late, but I already got my fair share of the roller-coaster
). Currently trading only the most liquid stuff... BTC and ETH.