Do I believe in Aliens?

This is not an easy question to answer. Because in one hand I do believe in aliens. In another hand I don't believe in aliens. How is this possible?

I believe that aliens can exist by using the definition "Can alien life exist on another planet?". But I don't believe in aliens in the manner that the general public does. Here are some questions that most people would answer differently.

1) Have aliens ever visited earth? No. Anyone who says otherwise isn't basing their conclusions on evidence, or practicality but rather on belief. Nothing wrong if you want to be believe in something but that doesn't make it true.

2) Isn't it a terrible waste of space if humans are the only living organisms in all of space? This argument doesn't have much levity in my mind. Saying that is almost like saying someone had a purpose for creating life. To believe that you need to believe in a higher power. Something that I can't do.

The reason I can't deny the possibility of life is because there is actually a lot of space out there. But I don't think aliens will come in the form that is perceived by the public. Very likely we will find some organisms on some planet the meet life in some level. Not the common expectation of an alien with a head, 2 arms, 2 legs and whatever other features make it convenient to live on our planet.

I'm also a little bit surprised on how humans came about. We didn't come about over night (unless you believe in the bible). It took us millions, nay billions of years to come to where we are now. When you think about all the coincidences it takes to create life the odds were against humans from existing in our current form. But some how over time we became an intelligence species that rose above the rest. Could it happen again? I'm not going to hold my breath to find out.