Hello! While it would be best if professors of mathematics or related fields could help answer my question, I would appreciate the views of professors coming from other disciplines as well.

My question is: What does it take to become a professor? Did y'all have all straight As during your undergrad degree, and a perfect (or very close to perfect) GPA?

I'm a second-year undergrad majoring in mathematics, and it is my dream to work in academia, i.e. become a professor of mathematics. However, the situation is such that I feel my dreams are shattered already. First of all, my university has an even grading system, i.e. the grades are A,B,C,D,E,F and nothing in between, i.e. no A ,A-, B-,B etc. So, last semester I got a B in my Linear Algebra course, and this semester my Real Analysis midterm was particularly bad and I don't know the rest of the semester will pan out. Also not sure if I did well enough on my Abstract Algebra midterm. In any case, my grades wouldn't (and shouldn't) drop below a B, but I'm afraid that if at all I get Bs in these courses, I won't get into good grad schools - and things will end there.

I am definitely trying my best, and the online semesters are a pain. I will try harder this time around, and I hope I get the As I want, but the possibility of a lower grade haunts me (thanks to my midterms)!

How do I tackle my situation? What should I do? Am I overthinking it? Honestly, I don't know what the undergrad lives of professors are usually like, and so I ask you to share your experiences and advice. Hopefully, it would help me get out of this mess that I find myself in.

P.S. No matter what the responses are, I will not stop working hard. I shall give my best, always.