Changing is difficult because the major part of changing consist in questioning yourself, your habits, your actions.
Basically changing requires you to be able to judge yourself and find all the possible errors in one day.
It is not based on finding the good, only the bad.
And it’s difficult because together with this you have to keep up the morale.
Because if you keep finding errors it’s easy to think you’re not suited for this.
But you are.