"It's boring" can either be an invitation for us to go deeper, or to run away.
Is a simple piano piece that we've played a million times "boring?" Not to Horowitz (or Keith Jarrett.) Or Paul McCartney.
IS a G major chord "boring?" Well... not to Mozart (or Charlie Parker).
Maybe the fact that they were intensely interested in the basic building blocks of music is what made them so great after all! Is a lump of clay "boring" to a sculptor?
No, a lump of clay represents the presence of possibility.
When we find ourselves temporarily bored with something, we can view this as a great moment. Because rather than run away to something else, we can begin to experience it in a fresh way. This fresh way, besides leading to personal growth, is exactly what will make us better musicians as well. And yes, it will gradually lead to complexity too!
So yes; "It's boring" can either be an invitation for us to go deeper, or to run away.
Let's take it as a self-invitation to go down the rabbit hole of vibrant exploration.
Here's something that the composer John Cage discovered about this subject:
John Cage quote
Enjoy the journey, and "let the music flow!"