One of the best ways to learn this sort of thing, to absorb it intrinsically, is to read. A lot. (If you're striving to learn, read a title more than once. First, read as a reader, to discover and enjoy, with no pressure. Second time or beyond, read as a writer, to figure out the structure, how characters are revealed, how the plot is advanced, how the POV was chosen... whatever you're focused on learning at the time. Write it out as you go, if it helps.) Read the stuff you want to write. Reach outside your comfort zone to compare and contrast with other styles/genres/age categories.
+1 to all of this.
And don't be afraid to mark up a copy. Lots of people find it really helpful to highlight or underline sections of texts for later reference of focus. It's very, very useful to pull apart prose on a line level to learn about its rhythms and effects. If you want, Google "close reading" and try to apply some of those techniques when you read.
None of this, though, is a substitute for actually writing.
I don't mean to suggest it's not useful. There's a huge amount can be gleaned by studying texts, and you'll get, if not answers, then at least some knowledge about these kinds of questions. If you find the questions intrinsically interesting, maybe see if there are classes in English literature available near you.
There's not always that much cross-over between studying English lit and writing it, though. It's helpful, but far from a requirement. Speaking as someone who's done a degree in English, you kind of go through three phases as a writer:
1. "What is all this stuff and why does it matter? I just like stories about horse-fairies where the good guys win, and there's not enough explosions in Viriginia Woolf. What's this about Joyce? I
don't understand!!!!1111!!!!1!."
2. "Ohmygod, this stuff is so incredible! I now have the secrets of the universe and I can definitely use classic verse structures and how they relate to theories baroque architecture in my completely unsaleable 283,000-word mass-market fantasy retelling of
Gargantua and Pantagruel which deconstructs Campbellian archetypes to make a point about feminist textual liberation."
3. *slow realization that this is actually all art* "Wait, most of the writers I like willfully ignored most of the analytical side of writing. Half of them were out of their heads on opium/booze/LSD, and the other half barely had a grade six education, but they have these incredible instincts drawn from experience or imagination. It's genius--but mostly it's just very smart fart jokes. Plus it has explosions, but they're obviously
post-structuralist explosions, why does no one see this??????" *writes 28,000-word Medium post* "Also, do you think they'll cast Tom Hiddlestone in the movie version?"