How do I recover a webpage project to continue editing?

I have techincally already published the webpage, but I usually continue editing as new content comes in. I have the published version of it, but now that I am trying to edit again, I can't seem to find where the editable file is. Ive already looked under "your stuff," "files," and "projects." I do not see it. It usally saves it automatically so I dont know why I cannot locate it. Am I missing something? 

Is someone able to help me with this, please? I would sincerely appreciate it.