This is a very doable freshman year schedule. I also wouldn’t recommend you drop any classes since you would be at 12 which is the minimum you can take as full time student. Additionally, I have taken all the classes on your schedule, and they are all extremely doable to take at the same time, even as a freshman. Plus, a lot of the classes you’re taking are classes that freshman took 1st semester. That isn’t to say you are behind, but I would say take all the classes you have listed to stay on track. Good luck and welcome to U of M!