You Need to have a vision, you have to believe in something. If you don't you're measuring it out by the metre and its meaningless.
Creativity is something about having space and the time for dreaming. Dreaming about something being more beautiful, or better or more generous or whatever your dream happens to be. Then you need to craft that dream.
Ideas come from your emotional and philosophical reaction to the world around you. You need to look listen and think about what you're seeing and hearing. Ideas zip around there quite elusive. To deliver them you need to graft.
Ideas never come out how you first imagined them - something happens along the way; if your lucky it turns out better?