Hi starsineyes,
Unless they told you stage management was easy and simple to learn, you have certainly not been cheated.
Congratulations on your graduation - that's great!
I encourage you to ask about the terms you don't recognize - that's what this forum is about! It's a good thing that you're still encountering terms/concepts that are totally new; every situation will bring unknowns to you, so enjoy the challenges and take it in stride! This board has a wonderfully diverse posting population, from many different places and types of theater and theater-related fields. Theater is absolutely a learn-as-you-go process. No need to stress -
"Remember to breathe, pay attention, and tell the truth."
--Maxine Hong Kingston