After you file

Thanks @Anonymous, really appreciate your help as I am truly lost in what to do here. Some clarifying questions:

1) So you believe I should report this as normal in "Wages & Income" for 2019, which by the way, the form already includes the taxable income. Is that right?

2) Therefore, I am confused about your comment regarding 2018 - do I need to make an amendment? What needs to happen there? If I also add the 1099-R form to "Wages & Income" (including values from field 1 and 2a), then I'd be paying tax on the earnings ("taxable amount") twice. Can you please clarify?