@David13032
It's been awhile since I created a new listing, but I think the final step is "Publish Listing". Don't hit that button or the Listing becomes live.
Otherwise, you just save changes and then come back and continue editing as you like. If the listing isn't done, you will see "In Progress" next to the listing name when you login to your account and you can just keep editing it until you are ready to publish.
That said...said there is alot to do after you hit "publish". Airbnb delays showing the listing until you have had time to complete everything like, Addl House Rules, Clean Fee, Cancellation Policy, Add all your addl amenities, House Manual, Arrival Guide, etc. It's alot.
What Happens After You Publish
https://www.airbnb.com/resources/hosting-homes/a/what-happens-after-you-publish-372