No, part time 20 hours doesn’t mean I’m coming in 5 days a week.

I'm part time 20hrs at my retail job, I'm not open availability but my availability is from 3-11. Thing is that's not my shift length, it's the hours I can be scheduled this is the second week of 5, 4 hour shifts. I walk to work in 90 degrees, I'm done. I'm putting my 2 weeks in ASAP after 5 months of scheduling bullshit