how do I get the old interface back?

Hi there, Kay. Yes, you can still use the old interface. I'll show you how to bring it back. 

You can switch back to the old interface by navigating to the Gear icon. Here's a sample screenshot for visual reference.

In the future, you may want to explore the new interface and its updated features. For more details, check out this article: Explore QuickBooks on the Intuit Platform.

This thread will remain open for further queries. We're always here to help.