What do you fear the most? What is it that shapes the way you live your life? You can write a sentence or a several thousand word story. I want to see your emotion come through. This is more about your emotional fear than a material one, unless you fear something because of an emotional reason. Then that works as well. You don't necessarily have to write about your own fears, either. Also, you can write more than one entry, but keep your entry numbers within reason.
Also, no cussing. If you feel that your story needs it, please censor it. Profanity makes a story less appealing for me.
Write away.