Hello Jerin,
QuickBooks Desktop is a robust program that's designed to help you bring your finances into perspective with ease. I'll be glad to share more info so you can back up your data in QuickBooks.
It's important to note that backing up your company files will save everything currently in your company file. If you have the 2020 file open this means you back up your accounting data, templates, letters, logos, images, and related files (QuickBooks Statement Writer, Cash Flow Projector, Business Planner, and Loan Manager). In order to learn more about this process, I encourage you to check out the following article that shows you how to: Back up your QuickBooks Desktop company file.
You're more than welcome to ask other questions in the comments below. I'll be one message away in case you need anything else.