Just write about whatever is on your mind: A person with a full bladder does not have to get motivated to run to the bathroom. Writing is the same. Get your thoughts out on paper.
A painter paints things, a baker bakes things, so a writer writes things. Write often and you will write well...And write like the gingerbread man runs. The inspiration aspect of it is a myth. Keep a journal or diary and read what you aspire to write. Do this and great things will happen. I promise.