I know most people have days filled with activities, places to go, and creating is something they squeeze in when they have time. For some people that time is what makes them happy and they create amazing piece. For others they feel like they don't have enough time, so they are not always pleased with the work they create.
I also know people who need to be angry or worked up to create art. Those emotions are what they need to do their best work.
Emotions are key to our creative output. Sometimes just having a bad day can throw you off balance. Be aware of your mood when you want to be creative, it may be a guide to how well you are going to accomplish your tasks.
Here is a question for you:
How does your mood effect your creative output?