A boy’s confusing existence is spent with a group of his closest friends. Dying to understand his journey, he realizes where it started.

Not a logline. Not even really a concept. This is what I know about your film:

Your main character is a boy.
He has some friends.

That's it. What is his goal? What are the stakes? Who is trying to stop him? What is the event that kicks it all off? Is "boy" the most descriptive you can get about your character? What's his flaw?

I came across a commercial that included a voice over quoting a poem.
I looked up the poem and it was used in a movie called "Dead Poet's Society".
This might give you some inspiration. It is certainly giving me some ideas.

O Me! O Life!
O Me! O Life!
By Walt Whitman 1819?1892 Walt Whitman
Oh me! Oh life! of the questions of these recurring,
Of the endless trains of the faithless, of cities fill?d with the foolish,
Of myself forever reproaching myself, (for who more foolish than I, and who more faithless?)
Of eyes that vainly crave the light, of the objects mean, of the struggle ever renew?d,
Of the poor results of all, of the plodding and sordid crowds I see around me,
Of the empty and useless years of the rest, with the rest me intertwined,
The question, O me! so sad, recurring?What good amid these, O me, O life?

Answer.

That you are here?that life exists and identity,
That the powerful play goes on, and you may contribute a verse.

Quotes from "Dead Poet's Society". http://www.imdb.com/title/tt0097165/quotes
http://www.youtube.com/watch?v=R_zsMwCOoEs

For what I've found you don't want to use fluff words, but finding his dad is a great goal. It's very tangible. It's does he or does he not. I think it does leave a lot of room for exploring his mental illness as well (cause that's what it seems like he's struggling with.)