Gmail logging in issues
I've been using gmail for almost a decade. This is my first time ever experiencing or facing these kinds of issues with logging in to my gmail account(s). I don't know when this happened, but when I came to check my emails, I realized I was kicked out of my own email, and it specifically mentions 'Session expired.' I do know what it means, but what I do not know is how this could've happened to my own Gmail.
When i followed the procedures of recovering the account, at the last step it asks for verification from another device or specifically from an SMS number from which they can send a code. But after trying 15 different phones and numbers, it repeats the same text underlined in the image.
Has anyone ever faced this kind of issue with their own Gmail before? I really need some assistance since my Gmail is linked with a lot of important matters.