Thank you very much for playing our game and sharing the feedback!
First of all you are not bad at puzzle games, you got to the end playing with one of the most difficult languages in the world and you know nothing about it before playing!!! Please give yourself some credits :D
We'll look into the intro, the subtext shouldn't be blurry though.
About the calendar, you will need to come back to the calendar and try to understand it in upcoming levels. But of course it's not good design if you can brute force to the solution. Maybe I can limit the number of time you make a wrong move (maybe 3?) then reset it to the beginning on the 4th time.
The journal layout will change in upcoming levels so you actually need to slip through too many pages ;) Hope you will come back to see the changes and our improvement!