First real day tomorrow, nervous

How lenient would you say the usual Sam’s club is with hours. This is my first job, and I don’t know how much I wanna work 40 hours a week, I’d rather work like 32 or something. I know this early stuff is training but 5 days in a row ima work 8 hours like idk how ima survive, I was tired after orientation.

Maybe I’m just freaking out but I seriously think I should get a day less of work, cuz it seriously is so much going from nothing to this.

Thoughts? Sorry if this is poorly worded and stuff, I’m kinda just rambling. My job is member cart attendant