For my CS degree, I was one class away from getting a math minor. Yet in the 15+ years since then, I’ve never used all the math I learned. As a result, I’ve forgotten most of it. So were all those math classes a waste of time? No. I think what the CS students were supposed to learn from those classes is a way of thinking, an approach to problem solving, and overall training. There are some industry jobs that require heavy math, and others that don’t. I ended up in the latter category. I’m not a manager, so I don’t have that excuse. So my point is to not be surprised if you find yourself math-less too.