I understand that having a lot of emotional baggage is a hindrance to creativity so I try to let go of them. I check on my negative emotions, label them accordingly, (for example: anger, sadness, fear, etc.) then let go one at a time along with a deep exhale.
I try to get as much quiet time as possible and meditate as well. When you go about your day and come from a quiet stand point, it’s easier to notice your intuition. Your intuition in turn leads you to new ideas. A simple example would be when going shopping. There’s so much merchandise to choose from, it can get overwhelming. If you’re coming from a quiet state of mind, you will be able to notice what catches your attention (which is a stirring of intuition) versus those who have so many thoughts reeling on their minds that they merely pass off what could be possibly best choice for them.
This is all assuming that intuition is one of the manifestation of creativity. For all I know, it could be the other way around.