How to update or unshare form from template gallery?

Thanks but I don't get the option to update or unshare form when I follow these instructions.

Any suggestions?

I can still see it when I search in Templates tab and it appears in My forms even though I had deleted it earlier.

Please check my screencast below on how you can unshare/update the shared form.

I hope that helps. Let us know if you have any questions or if you need further assistance.