What makes a book interesting is (because we are selfish creatures) how it hooks us as readers. I remember that one of my favorite books growing up is just about the most boring thing that you can imagine in terms of plot- Little House of the Prairie.
While you're writing your book, what you need to do is take a deep breath, find a habitat that makes you feel most alive: a place that rains a lot, the night, the heat, a crowded room, whatever it is, that thing that makes you sit back in a moment and think, "Whoa...I'm alive." That brief moment that allows you to feel like your soul has smacked right into the tangible world. When you find that habitat and that feeling, just write.
Write about everything that you ever wanted, never had, everytime that you lost or everytime that you ever won. Write about happiness and fear and all of those parts inside of you that you wish weren't there or that there were more of. Write this into your story and when someone opens that book, the completed imprint of your soul and life on paper in the form of characters wrapped in well-crafted sentences- that reader won't be able to verbalize it, but he'll feel it and he'll never forget it and he'll never want to stop reading.
It's not about the plot; it's about the humanity behind all of your writing.
I hope that this answers your question (aside from some last minute add-ons: focus on a distinctive characters, lots of humorous moments with his estranged father- life has lots of those awkward moments, leave the stalker out unless you really want him in there so badly that it burns your heart) and I hope that you enjoy writing your book. That's always fun! Squee! Good luck! Maybe we'll all see it on a shelf someday.
