If you ever have a period of time in which you cannot think of something to write about and are dealing with anxiety…look around you. Most people have a book inside them, they just need a bit of inspiration.
When you doubt yourself as an author or aspiring author, simply take to time to jot down a list of your areas of knowledge, skills, experience, things that you really enjoy or that inspire you. All of these are great opportunities for both nonfiction and authors to address.
By doing an Internet search, you can also find guidance on everything from eliminating anxiety for authors and how to deal with anxiety when writing to writing tips for authors or specific tips on writing a book.