You'll stop getting emails on Sep 1
...
You don't have enough storage. Starting Sep 1, emails sent to you will be bounced back to the sender and can't be recovered. Try more storage for 1 month at no charge.
Delete some emails. If you're not paying for the service you're really at the mercy of the service-owner and the Terms of Service you agreed to.
It's wasn't Googley 20 years ago [0, 1], but I'd say it's Googley today.<p><pre><code> [0] https://support.google.com/mail/thread/135127825/never-delete-another-email
[1] https://web.archive.org/web/20040401041817/http://gmail.google.com/</code></pre>