Can I use the same form I used last year?

I used jotform last year for my Vacation Bible School. It worked great. I would like to use it again. Can I just update the form from last year and

I would suggest cloning the form to start a new form. That way, you can make the edits on the new cloned form and leave the original form as it is. 

https://www.jotform.com/help/27-How-to-Clone-an-Existing-Form-from-Your-Account