iMovie is a great option to edit your movie. You can access it on the Macs in the library. Here is a great introduction if you're new using iMovie or if you would just like a refresher.
Tips for saving and sharing. Take a look at "quality" and "resolution" before you prepare you movie for sharing. You can significantly reduce the size of your file:
Lastly, if you have more questions about the advanced features of iMovie, find the full user manual here.
Adobe Premiere Rush is a mobile app that you can also use on the desktop.. It's available on Mac OR PC. Use your Cooper login to download the desktop app through Adobe.
Rush has quite a bit of customization options, but it's less intimidating to learn that Premier Pro.
Adobe Premiere Pro is a great professional level option available for both PC and Mac. Log in with your Cooper login to download from the Adobe website.
DaVinci Resolve
DaVinci Resolve is a free, open source video editing software. It's available for PC, Mac, and Linux. It's a robust video editing application that includes features iMovie does not have, such as "Hollywood" level color correcting. For more and to download for FREE, go here.
Look for Sway in your OneDrive Account.
You can even use the iPhone app to build a Sway.
Another web option is Adobe Creative Cloud Express (Formerly Adobe Spark)
Adobe Spark is a quick & easy way to create a unique video. It's a free, online web application. Check it out here.