The best writing software for someone with your aspirations is Scrivener!
The program developed for writers, by writers.
Not only does it allow you to write without distractions, but it’s also perfect for following an outline thoroughly. In fact, it also has a corkboard feature that allows you to create the entire outline from scratch.
Another motivating feature that helps is the ability to track your progress.
I know you have word count goals that seem nearly impossible to miss but when you can visually see your progress, it will help you push through to the last word in order to hit it.
