After you file

Thanks @fanfare. The majority of my income is on W-2 but some of it is not. Turbotax has always calculated the estimated taxes for me in the past but for some reason did not this year and I filed before noticing. I know I need to do them I'm just wondering if there is any way to get back in to turbotax to do it or if I need to manually fill out a 1040-ES myself and do it.