it seems that not only you experience this much so much and they feel unlucky when trading maybe because they can't control their patience and make them say that.
Yes, some people cant have patience and thats what even makes them lose. If you want to invest Or trade then be ready for whatever follows and always have plans on what actions to take if the unexpected happens. When price starts to fall you either opt for a quick sell out and avoid further loss or you can continue to hold that coin if you believe that there will be increase in future.