Hello,
Is this a personal account or a work/school account?
If it is personal account, unfortunately once deleted in that mattern, it is gone. It works as it is designed to do, the email cannot be recovered.
If this is a work/school account, it might be recoverable, depending on each organization's retention policy. Reach out to your organization's IT support team, they would know what the retention policy is for your organization and can recover for you if it is still within the defined retention period.