Go to your manage active listings board,find the item you want to delete ,check the box that is next to edit, go back to top click on box that says ACTIONS,click end listing,pop up opens lower right hand corner click blue button end listing.The listing moves to your ended/unsold listing board.
If you want I can PM you my telephone number and you can call me and I can walk you through it. And are you using a desktop or laptop to do it on? If you are trying to do it on a cellphone a lot of the ebay pages don't show the whole page on a cell.
Or PM me your email and I will send you step by step instructions with pics. of the pages to get you to it.
I am in Idaho which is Mountain time.