Keep at it and don't be afraid to ask for advice. Billy always emails back, and sometimes you can even get tips from other editors.
Don't worry about being super precise with literary terms, especially with poetry. Focus on the basics and everything will come together.
Honestly just try it out! I felt super intimidated when I started out, but editing really just takes practice and you probably know much more than you think!
@Lydia Sidrys hey Lydia, I don't know a lot of Lydias and how many of them are going to be teen writers/editors... Did you go to SWR this summer?
@Lara Katz maybe :) what is SWR haha
@Lydia Sidrys summer writing residency at Belin blank in Iowa?
I love when editors send a question along the lines of, "I don't have any idea how to respond to this piece." when I send the question along with the piece to a dozen or so editors, i get responses from most of them within a day. and the original editor is always enlightened and heartened by the assistance.
my other piece of advice: if you're a second reader, look closely at the responses of the first readers. if you find that they have a great way of putting language to something that you've had to respond to yourself in the past, chances are, you'll have to respond to that idea/issue again. steal their language for it. I call it benign plagiarism (I stole that phrase, too). if it makes you feel better, let the first reader know you loved that phrase (whatever it is) in your internal notes. I'll pass it along to the first reader.
for first readers: If you think you might would benefit from looking at pieces that first readers have already responded to, so that you can get an idea of how other first readers language their feedback.