Applied at Journeys for Sales Lead

I have an interview tomorrow for a Sales Lead position at Journeys in a Texas mall. This is the first time I'm interviewing for a lead role in my retail career, and I’m feeling really nervous. Imposter syndrome is hitting me hard right now. I’m looking for any advice on how to handle the interview and what to wear. Should I go for stylish casual or stick with a dress shirt, pants, and shoes? Any tips would be greatly appreciated!