Retirement tax questions

Thank you, xmasbaby0 for your response!  I did immediately try the free file link you sent, and am near the end of that form.  The next page is "file".  But nowhere was I asked about additional income which makes me uncomfortable.  This is the second online form I've almost completed, only to realize or suspect it's the wrong form along the way.  There seems not to be clarity at the start of a form so that it has become a "trial and error" exercise.  My online sales were modest, but in spite of my vast tax ignorance, it seems they should be included.  Again, thank you so so much!