If you’re OK with using apps to track your data and are up to pay for a service that helps, I would recommend giving Exist.io a shot. It’s a paid service but you can try it for 30 days for free and 60 days when you’re referred. The link I provided is my referral if you want to try it out for two months.
If the waterfall represents the words you write that flow out to your readers in a way that makes sense to them, then the lake above the falls is the “Spark File” that is filling up with great content to draw on and pour out when you need it.
It is so rare today that we get to see action or adventure movies like Die Hard where the craftsmanship is so prevalent. If we have to believe in a one-man-army out to rescue us all from the imminent doom and destruction, it has to be someone who has flaws and vices and by no means is a super-human. Because none of us are, and in movies like these, we don’t want our heroes to be.
You will never paint yourself into a corner where the only way forward is to keep writing on the project that has become unwritable. There is always at least a half-finished sentence or a stack of other projects you can flex your creative muscles over. It’s much easier to get to the flow state when starting is not the hardest part.