Tax Year Prior to 2020: 1099-G State Refund

I did my taxes a bit too early (first time on my own!) and I just received a 1099-G in the mail for last year’s state tax refund. I did not put that into Credit Karma when I did my taxes. My mom says that I have always taken the standard deduction because I have been a student up until this year and I have never made very much money. Do I need to amend my tax return since I didn’t put the 1099-G state refund amount into Credit Karma? Or would it have cancelled it out anyway because I took the standard deduction?