Help Needed For Suicide Boy

Since Lonely Boy Scans is on hiatus, I decided to scanslate the next arc. I can clean, typeset, translate, etc... but I need some help.

My first language is Korean, but growing up in the US prioritized English, and though I'm technically fluent in Korean, seeing as I speak it at home, I'm getting stumped on some phrases for some reason. (mainly idioms and such)

If there are any fluent Korean speakers who could help me with some phrases, please do.