Hey Daddy,
Does progressing time in game open up any new quests or such? You should have at least, 2 new story quests for Yona (and a bunch of other stuff regarding the alchemy minigame).
If not, can you drop your save here? You can use a file sharing site like Google Drive or MEGA etc. Just make sure the link in not private etc.
Saves will look like "5-2-LT1.save". The first number of a save indicates their page number and the second the save slot itself. So 5-2-LT1.save would be the 5th page, and save slot #2. Android your saves will be located in "ahitr_storage"