Need help for Multi-step/page Form in one page, please!

Hi everyone, i hope you are well !
I need help to create a multi-step form, with severals pages but in one page. The form its for generation leads business.

I give you a example that i would : Changement d’adresse en ligne - ma carte grise - Traitement en 24h
I need a form like this, please if someone can help me, i will be very grateful ! :slight_smile:

Here is my public share link: LINK
(how to access public share link)