how can i create a chart or graph?

We have the option to create form reports, where you have the option to create charts/graphs. Please check this related guide: https://www.jotform.com/help/187-How-to-Create-a-Visual-Report-with-Your-Form-Submissions 

Do try and let us know if this helps.

Else, you can download the submissions as an excel file or an excel report and then create the charts manually.

Greetings @Faithtabct - We're glad to inform you that we recently launched the new JotForm Report Builder. Should you be interested in its newest features, kindly check it out here.