This might be rudimentary for some folks, but anyone like me: meet with counselors regularly to make sure you’re on-track for graduation!
I was my own counselor. I used the course catalogs to determine what courses I needed to take to graduate. I thought I was doing well til I found (during what I assumed was my last semester) that I needed additional math credits and anothet credit in some other weird category to graduate. I took summer courses of Pre-Calc and Bowling to graduate a semester later than expected.
For what it’s worth, I’ve played a lot of this game. My wife and I are even playing it now!
I just wish it felt like someone cared about this game, from a developer perspective.