Retirement tax questions

Thank you … so my specific situation is this… I am retired and have been taking distributions from my Roth account since 2021. I’m not sure if last year I provided the correct cost basis, but my question has to do with this year. Do I recalculate my cost basis now based on how much I have taken out since I have retired? Also, I don’t know by return of basis first. Other than this one issue, I have no other problems with my taxes this year.