Please help me out!

<p>Hi, I'm a freshmen and I want to take econ 401 class in winter semester. I've heard about all the "econ-401-is-a-nightmare" rumors. Yes, I am freaked out. Is econ 401 that hard? I took IB math HL so I got credits to skip math 115 and 116. However, I am worried that I might not remember the basic concepts of math I learned in HS. Should I take econ 401 now or wait till I become a sophomore and instead take calc 3? I am really confused. Please help me!</p>