How to create a working form-submission?

Hey can someone explain me how I can make the form submission actually sends out forms to services like getform or formspree? It never sends any submissions.
Ive created the website via figma make.

I asked the AI to make this form actually submit and didnt work. I used GPT to help me, but no. This might have messed up the code too. So Im rly lost and am not savvy in these areas at all.