Using the website builder is not very user friendly, it is difficult to learn most of the actions available and how to use them. I have searched for a tutorial or basic building information without success. What is available is very basic like how to start, but nothing specific or what functions are available. Is there a user tutorial?
I apologize for the experience you've had so far creating your website. I can understand how important it is to easily work in your account. With that said, there is not currently one specific place that can list all of the available features along with a tutorial of how to build in your account. But there are a few good places I can recommend in the meantime. For instance, the Plans & Pricing page of your Website Builder account is a good place to see the available features. You also have the option of the Intelligent Builder section of their builder knowledge base for any available how to articles.
Their support team is also available to speak with directly by phone, chat, and email. One of these agents will be happy to help walk you through creating your site!