I don't know if it's just me but I can't seem to absorb the knowledge provided by following the Scoreboard thing. As a result, I am unable to understand the practices. What does # Set the text of the poetry line instance mean? I am very confused about everything
Yes, that line on its own, # Set the text of the poetry line instance doesn't mean much without the second half: Open PoetryLine.gd to learn how.
Usually when we are instructed to set something on an instance/node/object we generally mean that there either is a set*() function or just to set the particular property if that function doesn't exist.
In this case, if you open PoetryLine.gd it should be clear what we're talking about, because it's a function we defined.
So the main takeaway is that we need to understand instructions and explanations in their context. Focusing too much on a sentence or part of it is a pretty sure way to misunderstanding... and possibly insanity :)
Let us know if this is enough of a hint.