Where you get your inspiration from is essential to coming up with creative ideas. Ideas don't exist in isolation. They exist in the context of the greater idea space. The ideas we come up with is inspired by the information we consume, the context we exist in physically, and so much more. Of these, the easiest to influence is our information diet. Consume from a mix of sources. Don't consume the same things as everyone else. If you're into video game design, don't just consume video games, look to weird sources like juggling, painting, etc.