I was about halfway through hiragana part, my PC crashed and somehow gamesave seems wipes and I need to start completely from scratch. Is there any way to skip to where I was? Where would game saves be stored so I could at least try and back up in the future?...

They're very tedious and don't really teach anything.

https://gtm.you1.cn/sharedfiles/filedetails/?id=3338162822

As per title, finished hiragana challenge mode with >10 000 points and it didn't go off

The save isn't backed up. Somehow the save doesn't get uploaded and the space on the cloud remains unused. Just a heads up.