It is normal to do some mistakes and if you have mistakenly deleted your Gmail account, chances are you may have lost it permanently. If you have deleted it a few days back, you have more chances of getting it back. However, those accounts that were deleted a few months or years back have no chance of recovery. But still you can try your luck if you remember your Gmail username and password; in case you do not remember your password, you need to have access to the phone number linked to your Gmail account.
Important- You cannot recover a deleted Gmail account if you don’t remember your password and don’t have any phone number linked to it as well.
Steps to Recover a Permanently Deleted Gmail Account