Looking for advice for incoming freshman schedule!

Hello everyone,

I will be majoring in chemical engineering this fall and I was wondering if you guys could offer any advice for what I should choose as the last class in my schedule. My schedule is currently as follows:

Math 53
Chem 40
Chem eng 4A
Physics 7A

If it helps, I got a 5 on the Calculus BC AP and a 4 on the Physics C Mechanics AP. However, I took both of these classes my junior year. Would these classes be too much, as an incoming freshman? Should I also consider replacing any of the classes above (math 53 with math 54 or physics 7A with E7 or my AC)? Any advice would be appreciated.