Garpy said:
For my money's worth....if you're struggling to feel motivated to write the scenes leading up to these exciting scenes...then it may be you shouldn't write them.
Bottom line, if it's boring for you to write those chapters, then it'll be twice as boring to read. Maybe the really exciting story you want to tell starts with the events that occur in those exciting chapters?
Seriously...I've found if I can't get the juices flowing for a chapter, it's because there's something wrong with it...ie: it's dull.
I think Garpy is right but sometimes it isn't always simply that the scene in question is dull. I wrote my first novel chronologically, and often when I got hung up this way it was whenever I came to what was supposed to be a really big, important scene in the novel (okay, they're ALL supposed to be important, but you know what I mean--the scenes that were considered the big pivotal ones for the story, as opposed to the small ones that simply work as filler or to reveal character). Often I would just freeze up because the scene was
so important I became blocked. I was so afraid of not getting it right that I couldn't write anything at all. In other words, it is possible to become
intimidated by a scene, and that's what happened to me. And I think this may be the case more often than not when a certain scene is freezing you up every time you attempt it.
Well, there's two modes of thought on this and both have worked for me in the past. One is to continue working chronologically, no matter how much it pains you. This creates a "something to look forward to" momentum and also keeps you adhered to the fact that you are moving through your story exactly as a reader would, with no shortcuts. This method keeps you focused on what is important to the story IN THIS MOMENT, and by forcing myself to tackle those dreaded scenes head-on, I usually managed to put all that sweat and effort to good use on the page.
However, I did write my second novel out of sequence, although largely because its structure made such a process easier than it would have been for the first one. This time, I did allow myself the luxury of skipping ahead or going back, writing randomly whatever chapters or scenes I wanted at any given time. True, this became a stalling tactic for many scenes, but the interim also enabled me to stew on those scenes longer and sometimes there would be something that came out in the writing of those later scenes that gave me better insight into how the earlier ones should be shaped.
Another method that works is to list or sketch out all of the big scenes in advance (and you can still do this even if you're already into the actual writing). This enables you to get a feel for the bigger picture and you can then break it down, deciding which scenes you can tackle now, and which may require more thought, research, etc.
Either practice, chronologically or out of sequence, can work and it really boils down to what works best for you and your story. There's no right or wrong method. However, Garpy's advice is well worth adhering to. If the scenes are simply dull--or coming out so because you can't dredge the enthusiasm in the writing--they probably need to go.