Writer’s block is claimed by many published and aspiring writers and authors. It can be caused by a variety of potential issues – lack of confidence, feelings that the message will not be good enough or will be rejected, lack of planning, poor motivation, time constraints, or other life pressures.
When you experience this impediment to your creativity and success, take a deep breath and analyze what is driving your reluctance. Start with a bit of research to see what trends are common for your topic and genre, see what others are saying on the topic in articles and books, come up with a tentative title to help you focus (used Google Adwords, SEOBook Keyword Tool, Wordtracker or some other free term search engine) and then create a brief working outline to follow.
When all else fails, remember the words of Johann Wolfgang von Goethe: