Applied at Pizza Hut for Unknown

I have my first job interview coming up in 2 days at a Pizza Hut nearby. I've been applying for jobs since I turned 16 this year, but I've mostly received rejections or no responses at all. I'm really excited but also a bit nervous since this is my first interview. I'm looking for tips on how to prepare. I have a few specific questions: 1. What should I wear? 2. What should I bring? (I don't need a work permit in my state) 3. Do I need to ask the interviewer questions? I've heard that asking questions is important, like inquiring about who will be training me or what the expectations are. I want to show enthusiasm and make a good impression, so any advice would be greatly appreciated!