Maybe your project was so good you want to run it again! Perhaps, you need to make some changes to an already published project. You can copy and duplicate your project via the project dashboard.
How to duplicate your project:
Go to the Projects dashboard
Locate the project you want to copy
Click the settings icon ⚙️ to the far right of the project name
Click Copy
The copied project will have all the same project details as the original but it will be saved as a Draft. Projects in Draft mode can be fully edited: you can change the Details, Audience, and Questions tab. When you're ready just publish it!