How do I add a custom field to Newsletter form for First Name?

Hi I am trying to add a field to my Newsletter sign-up field to include a First Name field.

I am using the Impulse theme.

Thank you!

@caroleena

try similar way

https://community.shopify.com/c/technical-q-a/how-to-add-custom-input-field-for-newsletter-subscription-to/m-p/707702