Sometimes you have to put your head on the pillow and sleep. Then when you wake up, sleep some more. If possible repeat the cycle until you're tired of sleep itself. When you reach this point give your talents another go. Just maybe you will have some magic that you couldn't muster three days ago? If not dig through the archives and see if you can expand on a forgotten idea or phrase. The creativity will come back, the ideas will expand. They always do. Sometimes in burst. Sometimes in slow long drawn out months and years. How can it be that the things you are most passionate about seem so difficult to achieve ? How can it be you are near the summit of a life long quest and you may not make it those few hundred more yards needed to reach it.
What can you do? Stay silent and wait and wait and sleep again.