Retirement tax questions

I am 74 years old and withdrew a number of large amounts from my IRA during the 2020 calendar year as I was not able to find employment during that time .  I used to work about 39 hrs a week and did not work at all in 2020 except for about 5 hrs. earning $60.  Is there a way to spread the increased tax burden ( I paid already 25000 in fed income tax when I made the actual withdrawal)  I still have a $5000+ tax liability and was wondering if there are any means of spreading that tax liabilty over a number of years.

 

I have always filed a joint return with my spouse and was wondering if it would be more advantageous for me to file married filing jointly.