Sometimes the best thing that you can do when you are sad is writing.You don't need to explain or think but you just write what you feel.I'm not a author,being a author is a big thing ,I'm just a person that write what makes her sad or happy.I write for bad feelings and good feelings but not only this I find inspiration also from the story of people that I know.Don't forget that you can learn also a lesson from life even if you look other people mistakes.