Business Tax

I filed with Turbo Tax in 2021 for the first time.  I work two jobs.  One is in Companion Care and I get a W-2.  The other is as a realtor and I get a 1099-NEC.  I think the 1099-NEC first appeared in 2020?  I made a mistake and treated it as MISC income in 2021.  I didn't realize my mistake until I went to do my taxes this year and realized there was now a 1099-NEC.  Now I need to re-do 2021 before I can file the 2022.  How do I go about doing that?