However, here's what's interesting about your question:
* We live in the Milky Way galaxy. So, when you look up at the night sky, you're actually looking *within* our galaxy. The band of stars you see across the sky is actually the Milky Way itself.
* We can't see the entire Milky Way from Earth. Our galaxy is a spiral, and we are located on one of its spiral arms. We can see the disk of the Milky Way, but not the entire structure.
* We can see other galaxies. With powerful telescopes, we can see many other galaxies beyond the Milky Way.
So, in a way, we can't "see" our own galaxy in the same way we see other objects in the sky, but we are within it, and we experience its presence in the form of the stars and the band of light we call the Milky Way.