The analyses of a text #4

The narrator recalls his childhood; he is now in custody by his stepfather in his room.
He lives with his mother, Peggotty the only maid of his house, his stern stepfather Mr. Murdstone, and Mr. Mudstone's eccentric elder sister in his late father's house.

The length of those five days I can convey no idea of to anyone. They occupy the place of years in my remembrance. The way in which I listened to all the incidents of the house that made themselves audible to me: the ringing of bells, the opening and shutting of doors, the murmuring of voices, the footsteps on the stairs; to any laughing, whistling, or singing outside, which seemed more dismal than anything else to me in my solitude and disgrace; the uncertain pace of the hours, especially at night, when I would wake thinking it was morning, and find that the family were not yet gone to bed, and that all the length of night had yet to come; the depressed dreams and nightmares I had; the return of day, noon, afternoon, evening, when the boys played in the churchyard, and I watched them from a distance within the room, being ashamed to show myself at the window lest they should know I was a prisoner; the strange sensation of never hearing myself speak; the fleeting intervals of something like cheerfulness, which came with eating and drinking and went away with it; the setting in of rain one evening, with a fresh smell, and its coming down faster and faster between me and the church, until it and gathering night seemed to quench me in gloom, and fear, and remorse?all this appears to have gone round and round for years instead of days, it is so vividly and strongly stamped on my remembrance.
[David Copperfield by Charles Dickens]
I'd like to know if two "it"s refers to "the setting in of rain."
I'd like to know if "the setting in of rain" is the variation of "the rain setting in."
And I'd like to know if "in gloom, and fare, and remorse" modifies "me."
Thank you in advance for your help.