Because one has to be an optimist to begin an ambitious project, it is not surprising that underestimation of completion time is the norm.
There's always an element of self delusion among people who believe they ought to be President. There's an underestimation of your opponent and an overestimation of your own abilities. This is compatible with being rich and powerful, the idea that we were blessed by God because we deserve to be blessed.
You must overcome any shyness and have a conversation with the librarian, because he can offer you reliable advice that will save you much time. You must consider that the librarian (if not overworked or neurotic) is happy when he can demonstrate two things: the quality of his memory and erudition and the richness of his library, especially if it is small. The more isolated and disregarded the library, the more the librarian is consumed with sorrow for its underestimation. A person who asks for help makes the librarian happy.
Anxiety is sort of the opposite of ego. You're so sure you'll do everything wrong you're afraid to do anything at all. It results from over-motivation- leading to errors that lead to an underestimation of one's self. Work out your anxieties on paper and read. This calms the mind.
I think inevitably over the course of my lifetime there's been an underestimation of the American people, and I believe they are really the ones that give me hope. There's so much of "they don't know this, and they don't know that," and they're always denigrating.