Have a look at the neurodiverse sublemmy. The sentiment “had I only known this earlier!” is quite common there.
And just because you may share a trait does not mean you will get a diagnosis. But that also does not mean that you think totally neurotypical. This is not binary, it’s all spectrum.
Brute force attacks through web interface cannot be a real thing. Performance is much too bad to get anywhere even in great scenarios, plus its be simple to defend against.
But even if, web automation tools don’t need to be bothered by separating input fields. In the end one request is sent anyway.
The balloon analogy can lead one astray. Our minds see the middle of the balloon inside and think “Big Bang was there”. But the analogy is only for the surface, and the Big Bang included all the surface, and nothing else.
I have done this with calibre and a Kindle, worked fine.
Nowadays I prefer reading on my phone, and loading ePubs on any eBook reader is a non brainer.