Thank you for playing!
Could you expand on the schedule changing randomly on the weekends? It's an intended function for their schedules to be randomized. If you change one of your student's schedules, it'll revert everyone else's schedules back to their original state.
I'm not too sure what to do about the controls; the menus felt fine on my end BUT I'm guessing it depends on your machine. Admittedly, the name entry is pretty scuffed though. I've made a few adjustments so it doesn't feel as slippery.
If you are on Windows, installing the fonts should be as easy as going into the folder, right clicking the files and hitting install, at least in my experience. You're outta luck if you're on Linux though.