Despite stories of lightning-bolt revelations, creativity often requires time and effort. We are all creative.
Psychologist Mihaly Csikszentmihalyi found that insight is only one step out of many that creatives move through before their idea can come to fruition. Ideas can only emerge after a foundation has been prepared and left to germinate for a while.
In order to get the best out of the process, it can be better to have a number of projects going simultaneously. This may allow all your ideas to have the necessary amount of time to develop while you work on others. Or after capturing your idea, leave it and come back to it at later date.
One common method which I have is to try to capture as many ideas each day as possible, most aren’t that good or that feasible, but later when I flip through my sketchbook, a solution to a problem might be found.