What to expect for my first clinical

Hey y’all. I’m getting ready to go on my first clinical soon. I want to try to be as prepared as possible for it and I wanted to know what is something that you wish you would’ve known going into your first clinical or what advice you’d give to someone who is nervous about their first clinical.

What do you wish you would’ve packed? What questions should I ask the personnel that I’m working with? What should I do to be mentally prepared for what I might see?

Thanks!