@KristinaK
The side gig (staffing agency) is not self-employment, because I received 2023 W-2 Form this year. And on the 2023 W-2 Form it had no federal income tax withholding. I also received a refund from filing my taxes for this year from the side gig (staffing agency) and another job last year. I left the 2023 and 2024 W-2 Form for Step 2 (c) and Step 4 blank.
