It is the psychology but more importantly it is the emotions that get the best of us. This happens in every facet of life and trading is no different. When we lose we want to get out to stop the pain and when we win we want to book our profits. You must get a better mental state if wanting to achieve big things at trading cryptos imo!
The problem is when we lose we try to recover our lose with more positions in the same way and that make the lose more and more big, the best thing is to stop trading till we can analyse correctly without emotion of revenge from the market.