This doesn’t look like English yet.
thmyl-ttbyq-bnf-llayfwn
Try — not promising.
Together: gsnbo-ggy bj-ymu-oozbudm → no, that’s not readable.
It looks like you’ve provided a string: thmyl-ttbyq-bnf-llayfwn
thmyl (Atbash) → g s n b o ttbyq → g g y b j bnf → y m u llayfwn → o o z b u d m
Could this be a code for “make paper” as in create a physical paper cutout or origami with letters? This doesn’t look like English yet
Let me try the whole thing quickly with an automated thought: