To give a personal example I have a few XEMs. A few months back I was looking to consolidate all the crypto threads I had lying around so looked into selling a sizeable chunk as they'd been pretty stagnant for a while.
Being a bit dim and easily distracted I forgot about it and so stuck around for a 20-25x rise. Had my concentration held I probably would've gotten rid of them and would now be wailing and puking. In that particular case boredom and impatience nearly got the better of me.
There are countless examples on this forum of people declaring things dead or emphatically stating that such and such price will never happen again and giving up. Same goes for people going all in at the peakiest of peaks.
Have you yourself found your emotions tripping you up or are you an emotionless trading terminator?
To be honest sometimes I get tired waiting for a coin to rise if I'm going to sell or to decline when I'm going to buy, and just put an order which can be fatal after short period of time. I think most of use at least one in our life have traded based on the emotions and the fine to ourselves was the loss but it is a good lesson ever time (if you forget that you loss).