I love web scraping, maybe I can update this prior idea. With the high proliferation of botting, a lot of sites are now resistant to this type of scripting, but at this low volume of interaction, it may be doable with some effort like Undetected Chromedriver.
https://drewdevault.com/2017/05/11/Rotating-passwords.html
https://github.com/tsudoko/pass-rotate