Sometimes old projects no longer matter. You can easily delete all of your work within Shipyard.
Navigate to the "All Projects" page for your organization. By default, you can access this by clicking the "Shipyard" logo in the top-left corner.
Click on an individual Project.
Click the Settings tab at the top.
Click the red "Delete" text at the bottom of the page.
Confirm that you really want to delete the project.
The Project reference article contains details about how projects work and their limitations.