How can I add a success message to my custom contact form on the IRA theme?

The template I’m using doesn’t have the option to add a contact form to any page. As a workaround, I have added a custom contact form on this page using a liquid section, but it doesn’t include a success message after submitting, unlike the form on the contact page. How can I add that? Thanks!

site: pinkelephantcoffee.myshopify.com
password: charis

Never mind, I figured it out by duplicating things in the backend.