How to Edit a Post
Unpublish the post first, and then post a new one.
How to Unpublish a Post
Posts can only be permanently deleted by a moderator, but subscribers can unpublish a post of theirs so it can't be viewed by anyone else.
Go to your account page (click 'my account' at the top of the website when you are logged in).
Click the Title of the post you want to unpublish.
Click the "Unpublish" tab.
Exception: You cannot unpublish a review or a Parent Q&A post. If you need to unpublish a Parent Q&A post that has already been moderated, please contact us.