heyy! idk if i understood u completely, but it seems that u have an issue with updating the game (i think).
if ur on pc, u have to download the most recent version (the one that appears when u click on "download now"), then extract it and, finally, u can delete the old version (the one u've been reading til now). ur safe files should technically be intact, but as that version is really old, it's possible that they're deleted. it wouldn't take long to get to the point where u stopped reading by using the skip text function tho.
on mobile, u just have to download the newest version and it should automatically give u the option to update the game. same possible issues than in pc.
lmk if this helped u. if it didn't, please, clarify the question. i'd be happy to help! :c