Last day of previous month

Hi! I’m new to this tool and I’m trying to automate pulling reports from Jan 1 of the current year to the end of the previous month and also pull the same report for the same time period of previous years. For example, today is July 21st so I would want to type in the date “06/30/2021” as well as “06/30/2020” and “06/30/2019”. How would I go about doing this?

Post url of the page to see the date picker, some types can not automated with typing of date.
Need to see the type of date picker to find a solution