First: take a breath. In nearly every case the account itself can be recovered if we move carefully.
Common first steps:
- If you have a recovery email or phone number attached, try the provider flow to reset the password.
- Check whether your mail app on your phone still works (it often holds clues and sometimes a saved password).
- Look for password manager records you may have saved years ago.
- Search previous invoices or notes for the username/sign-in that this account used.
If those do not work: stop guessing, because repeated locked attempts can trigger a temporary freeze. That is exactly the kind of thing I help with on a consulting call. We will go through recovery options methodically, and if the account is linked to a domain you own, I can help regain control through DNS instead.