Retirement tax questions

Thank you MaryK4.  I have no SSA for 2023.  Should I enter zero in Box 5? 

For "Taxable Social Security benefits in 2023"  enter zero there as well?  

After I enter these amounts (for 2023 and 2022)  the total federal tax due is still $13,000.  It made no difference.  I was expecting the Federal tax Due to drop.  Does it recalculate later? Do I need to look into filing separately instead of jointly?  What can I look at to decrease the Tax due?  I appreciate your help!