I somehow messed up my account while trying to update to 1PW8 Beta- I may have changed my username

I'm not sure what I did- I am 1PW app on my iPhone, iPad, I have my Emergency Kit info- originally I had issues because I was using my Master password for the password and then tried to change that- I don't know if I was successful, but I can't log into the online site or install the new beta version- I would gladly just keep V7 if I could erase what I did to mess up.

1Password Version: 7.9.2
Extension Version: Not Provided
OS Version: Mac 12.0.1
Referrer: forum-search:https://1password.community/search?Search=Screwed%20up%20my%20Mac%20account-%20think%20I%20changed%20username%3F%20I%20need%20help!