Aliens have come and kidnapped the first human they came across, unfortunately, that was you. They take you to a new planet almost identical to our current Earth, but without anything man-made.
The aliens say you can have 1 million real humans to start “New Earth” and you can put them anywhere and teach them anything you want. You’ll have 1,000 years to make a good New Earth and if the Aliens like it, you’ll get to keep it, if not they will blow it up and try again with someone else. You will have access to old Earths internet so you will have the choice on what technologies you introduce and when. You live in the ship, but you can choose to pop in and out of New Earth as you please. You will not be burdened with all 1 million humans at once. You can choose to add a small number of them at a time until you get the proper resources established.
Edit: The humans can reproduce, and will unless you implement some form of birth control to prevent them from doing so. Also the first 1 million humans will start with the basic knowledge of how to human and you can pick personality traits for them, like you would a Sim, but the babies they make are blank slates.
You don’t have to try and make it a good society, you can choose to watch the world burn for 1,000 years. Up to you.
First steps would be to create a religion with all the usual “be kind and caring and patient and forgiving and nice in general to others and yourself” and then “do not be an asshole unless the others were an asshole first and then you may respond in moderation with an appropriate pinch of extra salt” and the ritual of an Aztec pyramid with slice and dice and flush them down the sewage sacrifice of any billionaires and power hungry totalitarians and corrupt public servants. Every year that do not require any sacrifice pleases the gods. But any year it is needed, the gods are content that required action was taken.