To me, being an excellent student is about learning, being able to express my opinions and thoughts on what I've learned, appreciating how lucky I am to to be able to get an education, etc. I know people struggle with grades for all kinds of reasons and there are so many other factors in being excellent. I guess that's why I would never want anyone to think they're not an excellent student solely on their grades, including you.
You made it through a semester with storm troopers and everything else. That's something to be proud of, in my opinion. But you don't have to be.