There are (at least) two types of creative processes. One is the formulaic and the other is random.
The formulaic one is where you find a tried and tested formula, like the hero's journey or something similar, and you introduce tiny variables on every new project, based on your experience. So you have a new output every time, but derived from a style of thinking, or a set of rules, which have worked throughout history. Like the show Seinfeld. This is what people call skill.
This is the result of hard work. You work on your craft so much, and you learn the ins and outs of it to such depth, that you understand all the ways it can be changed. Then you find a formula you like, and you introduce changes to produce new outputs.
This can get boring or repetitive, but it's very easy to do. And it can be taught. And it can be done at scale. This is the commoditization of creativity. You won't view your creative process in this light, but other people who see your body of work can tell.
The other one as the name suggests is random and just happens. It's very hard to replicate, and even harder to generate and even harder to acquire. You just know what works or doesn't work, mostly by intuition. Like the show Fleabag. This is the one people call talent.
For this process to work, you have to “believe in yourself” and be confident about your actions. You have to be sure that no matter what you do, you'll make things work, or fail graciously. And whether you fail or succeed, you will accept it, and “be yourself”, again. You have to be in tune with yourself, “know yourself”. Which basically means that you understand all your emotions, what they mean and where they come from.
Random creativity is rare, of course, but is also much harder to nurture. I don't know how it gets nurtured, but I think pressure, stress, and constraints are an important part of it. If you can get through the troubled times, with belief in yourself, you will gain unique insights that very few have.
Every creator defaults to one of these two (not by choice though). Or you might use both processes. Even if you’d like to use the second type it's not always possible. It either happens or it doesn't.