The most difficult person to be aware of is oneself. That is, anytime there is an invitation or possibility to doubt oneself.

That’s why people find it easier to focus on problems or other people.

Naturally, some people doubt themselves. But usually, they are very sure as to what they should have doubts about. The story they tell themselves makes it easy to know the doubts they must consider.

Anything else is experienced as threatening their identity.

They are not difficult. They are frightened.