The poem tells the same day twice. In the first half, the speaker answers "Are you happy?" with cheerful reports: good grades, a choir solo, a strong PSAT result. The mood slips a little with each stanza, moving from "wonderful" down to "normal," while the achievements keep piling up. Then the second half runs the list backward, and each stanza reverses its opening line: "wonderful" becomes "wasn't wonderful." The same facts now come with their cost. The tests were aced, but at the price of late nights. The house was cleaned, but only to relax.
The shift from "you" to "he" is the sharpest change. The speaker stops being asked directly and starts talking about himself in the third person, as if watching from a distance. That suggests the speaker feels detached from the person everyone sees succeeding. The feeling that builds is exhaustion, self-doubt, and a "downward spiral." The poem leaves the question unanswered, and that silence is the point.