I read a piece by a pro author last week. He was usually a very prolific writer, but suddenly couldn't get anything down. So, he changed all his routines. Instead of his comfy chair and nice view, he sat on a hard chair in a room with no view. Instead of inspiring classical music, he had loud rock. Instead of writing in the morning he wrote late at night. And it worked. The words poured out of him, much to his surprise.

Maybe a change to the routine would help?