Hi Amanda, what's the hole from?
You will need a piece of drywall, Amanda. Here's a link with the steps:
Hi Amanda, if your ceiling is sheetrock, this post should help you out. https://www.hometalk.com/2371202/why-i-learned-how-to-patch-drywall-and-you-should-too
If you don't know what you are doing I would recommend getting a contractor. It is not as easy as it looks and to buy all the supplies needed it will work out expensive.