I love your avatar. Actually when ever I am having a hard time in anything I always go and read my calvin and hobbes books. They help remind me have fun, and stay imaginative. Usually when I have a hard time composing I go for the brute for method as well. I try to get something down, could be a few measures or even as little as one note. Then I come back the next day or later and check to see if it is anything worth keeping.