A fun thing to do while watching Fellini movies is guessing which character Fellini thinks is his author-insert and then figuring out which one actually is the Fellini-based character.
Spoiler: it's the one that just can't help cheating on his wife.
I Vitelloni, Fellini's second solo-directorship, is the 1953 story of five friends in a small town who are actually all a little bit Fellini, but the director obviously wants himself to be the guy who escapes small town mediocrity at the end of the film. Sure.
We give Fellini a hard time for his lack of self-reflection, but we do really love him. Man can craft a fine art film that's entertaining to no end. But making fun of him is part of our nature, and if there's one thing Fellini wants you to know, it's that you can't fight your nature.