"Be not afraid of greatness: some are born great, some achieve greatness, and some have greatness thrust upon them." -William Shakespeare

One thing to do to get into a good mind set its to take a nap. When you sleep, it allows your mind to wander to places that you normally dont let it go to. Without you controlling it, you're immagination goes untamed, and it turns into true creativity. Dreams are just another kind of life you live in inside of your head, its the life you subcontiouly want, its everything that makes you and makes what you think the world should be, dreams are anything you want them to be and they're great things to write about.  

 Another thing that helps you're mind ease and opens the doors to the immagination is going for a walk. Sometimes being outside and around people is a good distraction from you're other life. Also, being outside and surrounded by nature can give you ideas of a setting, you can recreate where you really are in you're writing, and cretique it, make it even better, anything that you want.

 A third thing you can do, is go to a coffe shop, or a mall. You can over hear what other people are talking about and get a view of their life, because you do only have one point of view so its important to get by that restriciton. Listening to a couple of girls gossiping could give off a very good story line, even if it may not be that juicy, it's a start. You can come up with characters like them in you're writing, and yet again make them anyone you want.