In English there's a lot of words you only see in books, you wouldn't pick them up by listening. So the only way to learn to read literature is to read literature, and tolerate a certain % of confusion. I learned most of those words through repeated in-context exposure, and eventually one will get stuck in my head later in the day and I have to look it up.

The downside of this is, when someone asks while they are reading, "hey what does [word] mean?", I often can't tell the precise definition, because I never looked it up, but I can usually read the sentence and understand it with context.