How to start in squarespace

what should  do first?

create an email with the name of my website

create my website

create a domain

I am very lost

Let us know a bit more information on what you are looking to build a site for. The more info you can share the better we can all help to point you in the right direction.

What I would suggest first though is to play around with a trial site and see if the editor is something you like before you commit to anything else.