Retirement tax questions

Thank you for your help! (All of the following happened in 2020.) If I understand correctly, you are telling me to delete my 2020 IRA1099-R that I entered into TT, start fresh and enter it again. Box 1 is $125,000.00. $100,000 of that converted into my new ROTH IRA on 12/28/2020. The other $25,000 went into my personal checking account. Doesn’t that mean that the $25,000 was a partial RMD for 2020? You said to “indicate that you did a combination of rolling over, converting or cashing out...” so I assume there is a box to check that indicates i.e. “part of Box 1 is a RMD”? I am going to follow your steps and see what happens. 

Before reading your suggestion to send in the 1st quarter estimates, at 3:30 a.m. April 15th (today) I wrote out and mailed checks for both Federal and State 2021 1st Quarter Estimates. 2021 will be the first time I will have only myself as a deduction since my spouse passed away 02/24/2020.  Trying to figure out the estimates without a completed 2020 return was a big fat guess so I just added a couple thousand dollars to the amounts I paid quarterly in 2020 and will adjust the 2nd Quarter Estimates as needed. My spouse did all our taxes so last year I had to figure out how to turn on his computer (!), find all our previous yearly TT return files, buy a TT CD at Staples and educate myself on everything. I thought my head would explode especially since all his passwords are hidden somewhere in his computer. With all that I am still having much more trouble with the 2020 returns than I did with the 2019 returns. I so appreciate help from you and anyone else.