Need help figuring out if I itemized my deductions!

I am filling my taxes this afternoon and came across the question: Did your state or local tax refund count as income? Then the following piece of text: "Your state or local tax refund received in 2019 could count as income if you itemized your deductions in 2019. if you did this, your tax return would have a Schedule A."

 

My parents filed my taxes for me last year, and this is my first year doing them myself. I have my tax refund documents from last year, and have been scouring them for an answer. I have up to Line 23, and then have a Schedule 1 that goes up to line 36. I don't see Line 40 on the 1040 Form anywhere (which I was told could help me with this question). I also don't see anything called "Schedule A." Please help this newbie!

 

Thanks.