Filed 2021 taxes through TurboTax and am unable to locate them. I need to access them, as I have to amend them. how I can find and amend my taxes within the platform?"

I worked in Iowa but for 6 months and I also worked in Illinois, now I'm being double taxed, so I urgently need to amend my taxes, so I won't pay double. Can someone, please, help me to find my taxes in the platform so I can amend them? Thanks!