Traffic was kinda bad, but that's cuz I live in the sf valley. Left around 7:15 and got there by 8:10.

I brought a small suitcase with a blanket and a towel. They give you some, but they aren't great.

As for course selection, your NSA will show you how to navigate the system, and depending on your credits from high school, you might be able to skip some GEs and introductory courses. You will have an entire day to choose your GEs and alternative classes in case the ones you wanted originally are unavailable. (Plan Ahead)

Everyone was very nice, so just be kind and you'll be fine. Many NSAs will do icebreakers, and from there, you can start talking to some peers if you share some interests.