How can I be more creative?

It all depends on your thesis. What are you arguing? Why is this significant? Why should you use a reel of film, or a memory card recording your work? And why should the world care about what you have done. As long as you have a thesis, how are you going to argue this in your film. Every detail matters. Why is the shadow there, why is that man walking by, what do those letters mean. Why did that person say that at that moment. If you studied Hitchcock's vertigo, you should notice his meticulous choices to argue his many points. This is how you get creative. Know the significance of the cinematic choices you make. Make sure it supports your argument. And maintain a level of originality so that it stays interesting even to the harshest critic. This way there will be no doubt you will succed in your film.