PS4 - can't switch to Japanese input

[HEC]

by the time I finish doing it, type in お疲れ様, everyone has left the dungeon

You can always use autotranslate phrases or prepare the most common greetings / "goodbies" in the macros.

and I missed my chance to get loot and to commend anyone for my challenge log!!!

Well - that's quite unlikely as there is 300 seconds counter on loot ...