The speaker looks back at childhood dreams and admits that nothing came of them. At first it seems like a familiar, slightly rueful joke: we say we were naive back then, that big dreams were just silly kid stuff. Then the poem stops itself with a blunt "No." That single word is the turning point. The speaker refuses the easy excuse and offers a harsher truth: the problem wasn't youthful foolishness, it was putting things off until that habit hardened into cowardice.
The final stanzas shrink into short, stacked lines, each beginning with "Scared of." The fears move from big dreams, to success, to ourselves, so the blame lands closer and closer to home. The mood is quiet, honest, and a little uncomfortable. It doesn't wallow, but it doesn't let anyone off the hook either. Using "we" instead of "I" makes the confession feel shared, as if the reader is being included in the accusation.