Year of Wonders haha! I had to search up almost every word and it really frustrates me because it distracts me from the storyline and I forgot what happened previously T.T
Aaaah, I did this one in Year 12 and I know the feeling

Pro-tip: skip the first chapter ('Leaf-Fall 1666') and go straight to the second ('Spring, 1665.') As you can probably tell be the dates, the first chapter is a flashforward to a point that's 3/4 of the way through the story. It's called an 'in media res' opening where the author picks a point in the middle to begin, and then cuts back to the beginning. Movies do it all the time -
Gone Girl comes to mind as a great example of this, but many others do the 'omg how did we end up here!? *flashcut* Once upon a time...' kind of thing to grab the audience's attention. Later, you can actually analyse the chronology of the novel and think about why Brooks would do it this way, but for now, skip that section and come back to it at the end of Deliverance (ie. when the story catches up with where it began in 1666 - it's on page 260 in my version.)
Also, if you're coming across new words -
write the definitions in your book! (Or keep a page in your workbook free to write them down if you don't want to scribble all over the novel.) This'll make it much easier for you to remember them since finding a new word, looking it up, and then continuing with your reading will usually mean you'll have forgotten the word in a couple of hours. Granted, some aren't useful (eg. it's not crucial to know what a 'tallow stub' is) but others might be useful in other contexts (eg. 'unctuously.')
I'd highly recommend consulting some resources to help you make sense of this text too.
This is a good place to start for basic summative details, and
this is a great article for refining your interpretation.
I know it can be tough to get through so let me know if you have any questions, or drop by the English forums