g_private

After entering the correct password, I am locked out having 3 options:

-Use another phone or computer to finish signing in

    I always use the browser in incognito mode. This option does not apply to me (it will not work).

-Answer your security question

    I don't remember (I think I put something random) to make the account more secure.

-Get help

    It asks for the last password, but it doesn't work. Broken?

My ip is dynamic, so it sometimes changes. The ISP is the same as always (and the approximate location too).

I access the Internet using the browser's incognito mode. So Google considers each login as from a new device.

I only have this address (I don't have any secondary email), so I never set a recovery email.

My password was relatively strong (and only used for email).

I don't know how I'm going to do it. Possibly I will lose access to some things or have some difficulty migrating everything to a new email address.

All my services (social networks, paypal, and others) are associated with this email.