I have my doubts about...

Are we the only beings that inhabit the galaxy?

There are millions of stars in the universe and many think that we are the ones who inhabit the galaxy. Is this possible? I think there are more things that inhabit the universe. We may not know them, but they may know of our existence. If this is true, have you tried to contact us? I hope in the future there is some contact with beings from another planet or galaxy, and this helps us to see things differently.