I quote the part I am addressing. The rest requires a different discussion, and like most here, time becomes an issue. Feel free to pinpoint (in another post) the core of the other part may you wish to pursue.
Then perhaps give examples where you have deluded (meaning deceived) yourself. As for me: I teach. I sometimes have a premise, theory, supposition that a lesson plan will not only be successful, but highly successful--and it turns out it did not bring the results I was seeking. I don't see this as my having deceived myself, but as a reason to return to the drawing board to tweak the lesson to bring about the results needed. When a lesson fails, I do not delude myself into thinking it was a success--or even that it was the students' fault it failed.