Nothing sucks the creative life out of you like a job search.
A large part of creativity is having the confidence to experiment, think differently or just dive in. The search process can rob you of that confidence.
You have to make a conscious effort to be creative everyday. Even when you're tired. Or down. Or just plain beaten up.
If necessary, make an appointment with yourself everyday, even if it's only fifteen minutes, to be creative. And make sure it's creative for creative's sake. Allow yourself to enjoy the process. It will remind you why you want to go into the business.
Also, check out mikebrownspeaks for a daily dose of creative inspiration.
Good luck with your search. Let me know if you have any questions.