How do I add another persons email to receive the responses?

I have created a form for Grandfriends Day. I want the secretary of the school to receive the responses, but I used my email to create the form.

How do I add her email address as the recipient? 

Although the feature of sending the email notification to multiple recipients is only available to paid accounts, here's a guide with the information that you need — Send-Notifications-to-Multiple-Recipients

You may also find the guides below helpful.

Explanation-of-Email-Notification-and-Autoresponder-Settings

Setting-Up-an-Autoresponder-Email

Setting-Up-Email-Notifications