Portrait of the Artist as a Young Man- I think Joyce is different, sure. But vain too

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Hello! I'm new I'll try not to upset anyone during my stay

-Portrait of the Artist as a Young Man-
[I've read the book.. or rather listened to it.. so I feel like I've only a shaky clasp of the whole thing. My vocabulary and Irish terminology are also.. crappy. ]

I have to write an analysis paper.. 5pg min. Anyway, my thesis might be something along the (many) lines of:
Joyce is a conceited man who uses this book as a cry for attention because of the lack thereof.
He is not one with himself and this book is an attempt to fill the gaps in his security and acceptance of self. He is reaching out in hopes of a connection and understanding from the audience. He feels that these are well deserving for him, but missing. He is also trying to justify his choice of lifestyle and what it means through the character Stephen Dedalus in this book.

{Though very ingenious, what with his ground breaking style of writing, yes I'm still insulting him in a way.. by pointing out his own character..personality? flaws.}

Kay, back to my whole, "Joyce is vain" thing..

The message I get, especially from the last chapter..(s?) is that.. Well, he's bragging about himself.

He SHOWS us over and over, likewise with the many other details of the book.

He has Cranly and Temple fighting for his attention..

He finds the Dean incompetant of a true conversation regarding aesthetics.. {I think that's the convo. content?}

His lifestyle choice caused him to leave country, faith, and family behind. He felt all these things were obstructing his development as an artist and complains.. SHOWS us this using the entire book.

humm.. what do y'all think? Am I a fool? Do I have my facts crooked?