How do I modify the submit button to have form submitted to my email?

How do I modify the submit button to have form submitted to my email

If you set up the email notification in your form, the Submit button will automatically send the form submission to your email once it is clicked. You would not need to modify the Submit button in any way.

Here is a related guide to help you out: Setting-up-Email-Notifications  

Hope this answers your query.