To create a new story, click on the + icon on the top-right corner of your screen.
If you don't see a + icon, you might need to first signin into your account.
You can see create story page.
By default, every newly created story will set to draft and private. Once you're ready to publish, you can change the status accordingly.
If you're having trouble publishing your story, it might be that you're unverified. Please see our guide on how to verify your account?.