Hi! Thanks for your suggestions and cheering for me!!
I have more clarity on the subject of matter and of the "subject" now, at least enough to keep writing. I was afraid there for a moment that I had gotten it all wrong since the beginning and hadn't understood Schelling at all! But now I think I solved it, for the time being.
Today I found some interesting articles that I had already read a long time ago. Luckily I had also marked and classified them, so I was able to find interesting bits of information without re-reading them... In one of them, actually not an article but a letter from Schelling to his son, I found a clue that I had been understanding the problem correctly after all.
So that was good. Also I know now exactly which articles I still had there in my old archives, and which I still need to look for, only three or four.
Ok, no more batteries. Good night!