I want to delete a template that I have shared.

Hi,

You can stop sharing a template by following these steps:

1) select the form

2) click "More" > "Share as Template"

3) click "Unshare Form" in the bottom of the opened modal

You can find the explanation with screenshots at the following link:

https://www.jotform.com/help/157-Sharing-a-Form-in-the-Form-Templates-Gallery#How-to-Unshare-or-Edit-a-Shared-Template

Regards.