Just a thought:
Just something to keep in mind when you are struggling with your own creativity, whether it is some kind of painting, writing, music, or any of the other myriad of ways people create in this world.
Some ideas for when it is hard to create:
Go into your creative space and reorganize.
Read a book that directly pertains to your creative life.
Spend some quiet time alone to recharge.
It is difficult to be creative all the time, but stepping away for too long can make you lose momentum. Finding little ways to keep your creative thoughts flowing will help during the dry times.