You can't cross a gorge with a series of small jumps (unless you're Wile E. Coyote that is). You have to take a big leap, with enthusiasm and trust that you'll make it. Same goes if you want to be highly creative. Small increments can only get you so far. Eventually you either stagnate, and remain in mediocrity, or you have to jump and take a risk.
The grass is always greener on the other side, as they say. With creative ideas, that is almost certainly the case. If it is a novel and new idea then you have stepped into new grounds, unoutched by others so they are pristine. The problem is that when it comes to the other side, the dividing factor tends to be not a small gap but a gorge.
So the normal person takes a small step, a small risk, in a particular direction. It doesn't have a positive effect. They decide that that direction is not a productive one and try another direction. Or, more likely, sit comfy in their comfort zone. Now the creative person has a different approach. They often decide that the approach to take is to try and jump further.
Big jumps, by themselves, are not the answer though. They have to be followed by small steps in a few directions in order to optimise or refine the location we have found ourself in. Think about a radically new product. The first version tends to be the big jump while successive versions add polish, they are the small steps that get us progressively closer to the ideal.
Don't think small, think big. If your creative idea isn't working out, maybe it is that direction is not a productive one. Or maybe it is that you need to take it further before you hit the gold.
You're on your way to becoming a Highly Creative Person.