Shift lead first time

I have recently had a interview for what I thought was a “sales associate” interview just for me to get a call and get offered a shift lead position , I have been a supervisor at other stores but never have had to touch a safe or close a store down on my own or anything , also this isn’t one of the big Walgreen stores is mostly like a dollar general with a small pharmacy 😂 Idk what “photo” is but the store I just got hired at doesn’t have it Just could use some tips to calm my nerves I know they won’t just up and make me a shift lead right off back I know it’ll probably take months just very nervous lol