If you are having trouble simply starting to write the Essay, try to apply it to something you are very interested in. Or apply the essay to something you like.
For example. If you like breasts, and your doing an essay about bacteria. Then try to realte things about breasts.
The bacterea surrounds the blood cell like a man would surround his mouth over a bear brested nipple.
Essay can be fun, essay can be sexual, essays can be cool if you make your essay cool.