Creativity is a tricky creature. You can’t force it out. You need to have a lot of patience with it.
I suppose, it’s sort of like building muscles. Although, without the ultimate result of having ripped abs and being able to keep them even when you don’t exercise them as often. Creativity is not something that you earn once and keep forever. And it’s not something that gets better with time, like an old cheese. It’s something that comes out, from time to time, at inexplicable moments. But first you need to look for it and work for it. It almost seems like you could become a slave to creativity, losing days and sleepless nights obsessing over it. I don’t think creativity likes that though. Creativity should be your friend. It should be someone who you trust, and can confide into to let them examine your work. And when you’re having fun with your work, creativity appreciates it and says, ‘hey, that’s great! You could turn this into a masterpiece!’, and helps you achieve exactly what you were searching for, but did not know where to find.