I can't finish creating a new account or sign in - caught in a loop

I messed up while creating my account. Now if I try to login, it tAn account with this email doesn’t exist - yet. It tells me to create new account. When I try to do that, the message to me says the email address already exists and to sign in. How do I sort this out so I can use my account instead of my secondary email address and reset my password?

See if anything here can help you troubleshoot avast account:

which also includes this regarding account password:

Note. I am just another avast user and not affiliated with avast.