I'm ready to enter the final act, Act 3, of my (first big) story and by now I'm pretty sure I'll have to rewrite 50-70% in ACT 1 and 2.
I outlined the whole story but it is clear that my main hero is boring, his motivations (and story arc) change every few chapters and basically the whole script now feels like a mess. There's even a sinking feeling that my actual hero is one of the allies: i.e. the one who actually does stuff. My main char just 'gets dragged along' and doesn't decide a thing and if he does, it's the allies that do what he tells that should be done (he's a retired general).
Everyone keeps advising me to 'write until the end' and then rewrite. But writing act 3 will probably feel like a drag (which was already starting to happen near the end of act 2). I'm pretty sure nothing of it will make sense because nothing I'll write in act 3 will be in-line with how I (think I) need to rewrite the first two acts. I've been staring at a blank page for a week now not sure if I should actually write this last part.
So the question: should I keep writing these last 20k words that are most likely very useless. Or is it (finally) time to go back to the 'drawing board' and fix what needs fixing and then write act 3, knowing what I know now.
Thank you in advance, Tim