My account has been breached and I’m locked out

Somebody got into my terminal on my Mac. My account has been breached, and I’m locked out. My password does not work anymore, and the recovery code doesn’t work either. I can’t access my account online or thru the app on any of my apple devices or thru Chrome where I had it as an extension.

First I got error message that the recovery code was too new. I think I made it right after the breach, unfortunately, so it was rejected as too new. Every time I’ve tried to enter it since then, I get that it was canceled before, so it’s not going through

I’m afraid somebody else is using my 1password account. I don’t know what to do. Please help.

Any help greatly appreciated. Meanwhile I’m hurriedly changing all my truly crucial passwords. I have a home office and run a one-person business. I shudder to think what might happen as a result of this attack.