The Storyboarding worksheet is a great resource to use to map out your story. There are examples of how you can set up your story and a template for your story pathway.
The Getting Started on Twine Cheat Sheet is a great resource to use if you're having trouble with inputting your passages onto Twine.
The Advanced Twine Cheat Sheet is a great resource to use if you're having trouble with any of the CSS or HTML codes that you want to implement onto Twine. From adding content to designing your content, you can find all you need here!