Buy this book.

I recommend this book 100%! It will save you ever to attend any writing workshops or courses. I AGREE whole heartedly with every damned word of this very easy read. Hear is a successful author telling you how you can do what he does. He emphasises the fact that ideas are 10 a penny and the real effort is making a jumble of ideas have meaning and make sense. Buy it, read it, devour it, this is the feast following any creative famine that you have had,  or maybe are having. It is a big sign post on how to finish your latest opus magnum.