It all comes down to one thing: do you still have the old phone, and does it still turn on? Start there.
Do not skip step 6. If the old phone stays on the list and you later sell it or trade it in, that is a working key to your account sitting in somebody else's hands.
Try these in order.
If you printed or saved backup codes when this was set up, enter one on the code screen. Each code works once.
Once you are back in, go to myaccount.google.com/security, then 2-Step Verification, then Backup codes, and generate a fresh set. Save them somewhere that is not your phone.
A tablet, a home computer, or any other device already signed in to the same account can approve the prompt for you.
On the code screen, click Try another way. If a text or a call to a recovery number is offered, take it.
Text or call us. We can issue you a backup code directly.
Have ready:
Why we cannot just email you a code instead. The whole point of this step is that somebody who has your password still cannot get in without your phone. If we could switch it off with an email, so could anyone who had got into your email. The few minutes this costs is the protection doing its job.
Text or call 701.306.0188, or email michael@wetravelpc.com. Let us know which step you got to and we will take it from there.