This is true as a newbie never listen by hearsays and avoid such fuds when planning to invest. The most mistakes also by many is being rule by emotions. As a beginner when trading Bitcoin to always dyor before investing and journaling is a big help in trading. Plan when to buy and when to sell and always take on profit when happy.
This is not only happening to a newbie, it can also be happening to some of us. Emotion drives us no good but this helps us to commit mistakes and wrong decisions.
That is why, if we should be seriously doing trading and aiming for a positive result, we should have to work on it and eliminate this emotion. Mistakes can't be avoided, as we know that but it could be minimal.