Software engineering is an engineering discipline, not an art. Engineering is about applying the best known methodology to solve problems.
That does not mean there is no room for artistry and creativity.
But most jobs are looking for software engineers, not artists. To them it's more important to have a reliable ETA and get a robust product than for you to find new and creative ways to solve their problem.
Live out your need for creativity in your open source side projects.
Generally speaking: Be creating in WHAT your are doing, not HOW you are doing it. The more creative your methods are, the higher the likelihood of failure. Which is good if your goal was to learn something, but not so good if someone is paying you to solve their problem.
Also note that most software engineering is grunt work. That does not mean it can't be fulfilling, but it does mean you don't have to be a 10x engineer to do it. View software engineering as a great way to make money. Then tend to your needs in your side projects.