Financial investment and trading can be said to be both difficult and easy.
Easy for those who have the discipline to "repeat" continuously to the point of becoming proficient, creating unconscious habits...
And difficult for those who do not have discipline and trade frequently and haphazardly...
If you know how to be disciplined, know how to manage capital, know when to enter the market according to your trading mindset/system and practice them skillfully, you will find them easy...
But if you do not have stability, consistency in each investment, each order... then that instability is reflected in the trading results... your mind will automatically see this as a difficult job...
Difficult or easy depends on the MIND of each of us.