Google recaptcha script in highend

Hello,

I was trying to paste the given script from google in order to add recaptcha to my login forms and contact forms. They told me i have to, “Paste this snippet before the closing </head> tag on your HTML template:” I have the snippet and tried to paste it into the custom script section of highend, but i can’t get it to work on there with no errors. Any help would be greatly appreciated. I don’t have developer experience and cannot figure this out.

I can send the information in a private message if nessesary. Thanks!

Sincerely,
Daniel Riera