If you need a refresher course or an entire education on how to create a panorama, here are links for free tutorials on the subject.
Adobe Pano Tutorials for Lightroom, Photoshop, Elements
Use this link to view several different panorama tutorials available via Adobe...several pages worth to keep you busy for hours!
YouTube - Pano Tutorials for Beginners
Use this link to view several panorama tutorials on YouTube. This link was generated by doing a general search for panorama photography on YouTube, so some of the videos may not apply. But there are many great videos here, and it is definitely worth the time to review.
Panorama Tutorials (Google Search Results)
When all else fails, Google is a great friend! This link takes you to a Google search result page linking hundreds of relevant articles. (Don't have time to wade through them all? This one from B&H photo seems to give a great overview of the how-to's and how-NOT-to's of creating your first Panoramic image.)
How to Shoot a Composite Image
This article from the Digital Photography School shows the very basics of how to shoot a composite image, and discusses both the creative and practical reasons for creating these types of images. If you've never created a composite image, or just want to brush up on the basic techniques involved, this is a great place to start!
Combine Images in Creative Ways (Photoshop Tutorial from Adobe)
Now that you've captured the images that will become the elements of your final composite, use this tutorial to harness the powers of Photoshop CC into a tool for creating the perfect masterpiece! (Comes complete with practice files.)