en_tn/pro/15/15.md

miserable

"very unhappy" or "really bad"

a cheerful heart has an unending feast

This compares the joy of a cheerful attitude to the joy of a feast. AT: "the person who has a cheerful heart enjoys life as if life were an unending feast" (See rc://en/ta/man/translate/figs-simile)

an unending feast

AT: "a feast that will continue forever"

great treasure

See how you translated this in Proverbs 15:5.

confusion

"trouble" or "panic"