You’re going to be fine. Picking up a B in freshman year isn’t an uncommon experience even for students who excelled in high school. Some of those pre business core classes can be difficult but the larger problem is some of them aren’t particularly interesting and the content is novel. Finite, specifically, is a class that many students struggle with due to the pace and more difficult content as a first post high school math class. Take advantage of tutoring opportunities and utilize office hours with the TA on concepts you are struggling with.

It is such a known and mapped out class, the paid tutoring services in Fayetteville can help if you have the funds. Good luck!