I must admit I did not listen to a lot on school, but one thing that stuck with me when I had problems getting started with writing essays was “Just start writing”, So don’t think about it just put pen to paper and start writing. and when you are writing you can think about it, and then at some point your thought and the pen will aline and walla you have an essay. There is more to it, but at least that helped me get over my writers block.