the text boxes when looking at your quests are sometimes a little wonky. as in the box will go off the screen and make it unreadable.
Dude try making minecraft Resolution smaller as in press the button in between “x” and “-“ If that doesn’t work make the resolution smaller in the re should be videos on how to do that on youtube
You can make your GUI scale smaller by hitting escape --> Options --> Video Settings --> And turning the GUI scale down.