Need help to go back to original form

I am not sure if I have understood your question correctly. Do you mean to say that you have made changes in your form and now you want to revert back to earlier version?

You can take advantage of our "Revision History" feature to revert back your form to an earlier revision. The following guide should help you:   https://www.jotform.com/help/294-How-to-View-Form-Revision-History 

Hope this helps.

Do try out and get back to us if you have any questions.