In the beginning..... There was Chapter 15

You have a lot of options, that are different degrees of the same principles. Such as:

• Start with a prologue of the key part of Chapter 15, and say "As he charged, he thought back to how he'd gotten here..." That's considered a bit forced, but not impossible.
• Start with a future-dream of 15, so characters spend 1-14 trying to work toward it and figure out what it means. Or maybe not a dream but a miniature version of 15's event, intense but limited, with a clear statement that "in time you'll have to fight this out on a real scale!"
• Start with 15, followed by 1-14's most essential facts distributed between your current Chapters 16+, in the form of flashbacks or restructured scenes. It might be nice to meet the hero's father before trying to fight the dragon, but why couldn't he stumble down from the mountain into a paternal "I told you so" instead?
• Start with maybe 1, 9, and 15, however's the best way to condense the buildup arc and max out its threats, um promises, that something like 15 is coming soon. Take most of 1-14 and streamline it to be fitted in afterward, as above.
• Throw out 1-14, and consider 15 the start of the story. Be sure you explain what you needed from 1-14 in the following chapters, but consider using 1-14 in a prequel.

It all depends what kind of emphasis you want on Event 15 and the things leading up to it. (And how much work you want to do to rebuild 14 chapters and the things they'll fit into; there's something to be said for the simpler options that keep that careful buildup and let you finish the story sooner. No book is perfect, but it's nice to just get it done and apply its lessons to the next one.)

 

You essentially have two paths you can take:

1) Start at chapter 15 and work the important thingsin later. If those first 14 chapters are essentially useless (few important facts aside) then you will definitely need to cut to the good bits because no one will read far enough into your story to get there otherwise.

2) Revise chapter 1-14 so they aren't so boring. If you're reluctant to do this because it messes with the plot you've set up then, and not to be rude, get over it. Too often people fall in love with their first draft and can't bring themselves to fix large problems they have because the work required to fix it all appears too daunting. I ran into a similar issue some weeks back with the first two parts of my novel (which totaled about 150k words, mind you) when I realized the plot and sequence of events for those parts just sucked. Any editing I had done was simply me either trying to smooth the edges or put an extra fine finish on what was still, at the end of the day, terrible.

I decided to, essentially, toss out those first two parts and start over to try and make it better than it was. I have no doubts that even this "fix" won't solve all my problems but hopefully it will get me a little closer. It's also going to take a ton of work but I want my story to be as good as I can make it.

The point of my mini-ramble there was that if you have 14 chapters that are useless, your plot might have more serious issues than just where it starts. Either you need to be very critical of your plot, trying to weed out holes and and "a wizard did it" sort of cheats and self-assess or find someone who can give you a harsh but constructive rundown of everything to help you out. Until it's published, it's all malleable.

 

For completeness's sake, I'll suggest one more possibility--make a story of chapters 1-14, and have 15 begin the sequel. (This is how Orson Scott Card turned the "boring prologue" to Speaker for the Dead into the novelette Ender's Game, later expanded into a novel that's now widely considered to be his best book.)

 

I've found that when I start writing a story, from the get-go, I'm just warming up my engine. Depending on how tired or out of it I am, I'll find that the better starting point can be several paragraphs or even pages from the first thing I wrote. My advice is to go back to your first or even second chapter. If you can't stay hooked with your own beginning then you know it's not good. Skim over the words of the first two chapters until you find a sentence that hooks you. The one that jumps out. Then read from there. If you can follow the story from that point then you have your beginning.

 

Another thing to consider, which depends on your story, is that you can intersperse other, more interesting happenings to keep the reader hooked through these chapters while you simultaneously have time to let them get to know and love your character(s). Let the reader see some seriously evil stuff (maybe even going back as far as creating a chapter 0) that they know the main character is going to encounter as this character is oblivious to the surmounting and insuperable evil. Or something like that.

Or you could just keep these chapters in. Finish your story (don't even think about 1-14 until you're done) and if you still feel that way, cut them out. If you can cut them out without really effecting the plot, then they aren't very necessary.

Don't be afraid to cut stuff out, but don't destroy it altogether.