First, log in. After that, go to the Expat Story you'd like to edit or delete. You can do this many different ways, including 1) navigating to it from the Expat Story menu; 2) searching for your own name in Search by Storyteller; and 3) clicking on the Expat Story you posted from your own account. Once you're at the correct Expat Story, you'll see the "Delete" and "Edit" icons. (Note: you won't see these icons if you're not logged in.)
You can trust that Best Places does not manipulate content to sell you anything. All opinions in the Community Q & A and Expat Stories are those of its authors, not Best Places.