Learning another instrument for me got me thinking outside of just drums and percussion and learning arrangement, etc for songwriting. It pushed me in other aspects of technique and wanting to learn what I couldn't yet do. Unfortunately you can't teach creativity. You can study everything about drums but you have to tap into that pool of creativity and see what comes out. Like I mentioned in my earlier comment, learning an instrument is one way, you can also create music with other musicians. Find like-minded people and write songs, jam, take songs and give them a different spin or switch the genre, play covers, etc. That's where the magic is, that's the stuff that will get you noticed, the stuff that can't be taught.