Past 1099-K tax form

[Grandma15]

I need to get a copy of my 1099-K form for 2018. Where can I find this or get a copy of it? Thank you

[halltech]

I am also confused that my past years' tax forms are not showing in my tax form area.

I know I should have tax forms for 2019 and 2020, but neither are showing up in my account.